{"id":126489,"date":"2023-09-13T15:50:00","date_gmt":"2023-09-13T10:20:00","guid":{"rendered":"https:\/\/www.kopykitab.com\/blog\/?p=126489"},"modified":"2023-11-16T10:45:55","modified_gmt":"2023-11-16T05:15:55","slug":"rd-sharma-class-10-solutions-chapter-7-exercise-7-1","status":"publish","type":"post","link":"https:\/\/www.kopykitab.com\/blog\/rd-sharma-class-10-solutions-chapter-7-exercise-7-1\/","title":{"rendered":"RD Sharma Class 10 Solutions Chapter 7 Exercise 7.1 (Updated for 2024)"},"content":{"rendered":"\n<p><img class=\"alignnone size-full wp-image-126498\" src=\"https:\/\/www.kopykitab.com\/blog\/wp-content\/uploads\/2021\/09\/RD-Sharma-Class-10-Solutions-Chapter-7-Exercise-7.1.jpg\" alt=\"RD Sharma Class 10 Solutions Chapter 7 Exercise 7.1\" width=\"1200\" height=\"675\" srcset=\"https:\/\/www.kopykitab.com\/blog\/wp-content\/uploads\/2021\/09\/RD-Sharma-Class-10-Solutions-Chapter-7-Exercise-7.1.jpg 1200w, https:\/\/www.kopykitab.com\/blog\/wp-content\/uploads\/2021\/09\/RD-Sharma-Class-10-Solutions-Chapter-7-Exercise-7.1-768x432.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<p><strong>RD Sharma Class 10 Solutions Chapter 7 Exercise 7.1:&nbsp;<\/strong>Students will use the direct technique to find the mean of grouped data in this exercise. Kopykitab&#8217;s <a href=\"https:\/\/www.kopykitab.com\/blog\/rd-sharma-class-10-solutions-for-maths\/\"><strong>RD Sharma Class 10 Solutions<\/strong><\/a> is a very beneficial resource for students to refer to and study well for their exams. For full solutions to questions, download <a href=\"https:\/\/www.kopykitab.com\/blog\/rd-sharma-class-10-solutions-chapter-7-statistics\/\"><strong>RD Sharma Solutions for Class 10 Maths Chapter 7 Statistics<\/strong><\/a> Exercise 7.1, PDF provided below.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_47_1 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"ez-toc-toggle-icon-1\"><label for=\"item-69d91c8d49df3\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;direction:ltr;\"><svg style=\"fill: #000000;color:#000000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #000000;color:#000000\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input  type=\"checkbox\" id=\"item-69d91c8d49df3\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-visibility-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.kopykitab.com\/blog\/rd-sharma-class-10-solutions-chapter-7-exercise-7-1\/#download-rd-sharma-class-10-solutions-chapter-7-exercise-71-free-pdf\" title=\"Download RD Sharma Class 10 Solutions Chapter 7 Exercise 7.1 Free PDF\">Download RD Sharma Class 10 Solutions Chapter 7 Exercise 7.1 Free PDF<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.kopykitab.com\/blog\/rd-sharma-class-10-solutions-chapter-7-exercise-7-1\/#access-answers-to-rd-sharma-solutions-class-10-maths-chapter-7-exercise-71-important-question-with-answers\" title=\"Access answers to RD Sharma Solutions Class 10 Maths Chapter 7 Exercise 7.1- Important Question with Answers\">Access answers to RD Sharma Solutions Class 10 Maths Chapter 7 Exercise 7.1- Important Question with Answers<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" 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href=\"https:\/\/www.kopykitab.com\/blog\/rd-sharma-class-10-solutions-chapter-7-exercise-7-1\/#what-are-the-benefits-of-using-rd-sharma-class-10-solutions-chapter-7-exercise-71\" title=\"What are the benefits of using RD Sharma Class 10 Solutions Chapter 7 Exercise 7.1?\">What are the benefits of using RD Sharma Class 10 Solutions Chapter 7 Exercise 7.1?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.kopykitab.com\/blog\/rd-sharma-class-10-solutions-chapter-7-exercise-7-1\/#how-is-rd-sharma-class-10-solutions-chapter-7-exercise-71-helpful-for-board-exams\" title=\"How is RD Sharma Class 10 Solutions Chapter 7 Exercise 7.1 helpful for board exams?\">How is RD Sharma Class 10 Solutions Chapter 7 Exercise 7.1 helpful for board exams?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"download-rd-sharma-class-10-solutions-chapter-7-exercise-71-free-pdf\"><\/span>Download RD Sharma Class 10 Solutions Chapter 7 Exercise 7.1 Free PDF<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div id=\"example1\" style=\"text-align: justify;\">&nbsp;<\/div>\n<p style=\"text-align: justify;\"><style>\n.pdfobject-container { height: 800px;}<br \/>\n.pdfobject { border: 1px solid #666; }<br \/>\n<\/style><\/p>\n<p style=\"text-align: justify;\"><script src=\"https:\/\/www.kopykitab.com\/_utility\/js\/pdfobject.min.js\"><\/script><br><script>PDFObject.embed(\"https:\/\/www.kopykitab.com\/blog\/wp-content\/uploads\/2021\/09\/RD-Sharma-Solution-Class-10-Chapter-7-Exercise-7.1.pdf\", \"#example1\");<\/script><\/p>\n<p><a href=\"https:\/\/www.kopykitab.com\/blog\/wp-content\/uploads\/2021\/09\/RD-Sharma-Solution-Class-10-Chapter-7-Exercise-7.1.pdf\">RD Sharma Class 10 Solutions Chapter 7 Exercise 7.1<\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"access-answers-to-rd-sharma-solutions-class-10-maths-chapter-7-exercise-71-important-question-with-answers\"><\/span>Access answers to RD Sharma Solutions Class 10 Maths Chapter 7 Exercise 7.1- Important Question with Answers<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Question 1.<br>Calculate the mean for the following distribution :<\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td width=\"30\">X<\/td>\n<td width=\"35\">5<\/td>\n<td width=\"37\">6<\/td>\n<td width=\"39\">7<\/td>\n<td width=\"37\">8<\/td>\n<td width=\"26\">9<\/td>\n<\/tr>\n<tr>\n<td width=\"30\">f<\/td>\n<td width=\"35\">4<\/td>\n<td width=\"37\">8<\/td>\n<td width=\"39\">14<\/td>\n<td width=\"37\">11<\/td>\n<td width=\"26\">3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Solution:<br><img src=\"https:\/\/farm2.staticflickr.com\/1964\/31874701638_c90debb63d_o.png\" alt=\"RD Sharma Class 10 Chapter 7 Statistics \" width=\"264\" height=\"250\"><\/p>\n<p>Question 2.<br>Find the mean of the following data:<\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td width=\"27\">X<\/td>\n<td width=\"32\">19<\/td>\n<td width=\"30\">21<\/td>\n<td width=\"30\">23<\/td>\n<td width=\"31\">25<\/td>\n<td width=\"30\">27<\/td>\n<td width=\"30\">29<\/td>\n<td width=\"28\">31<\/td>\n<\/tr>\n<tr>\n<td width=\"27\">f<\/td>\n<td width=\"32\">13<\/td>\n<td width=\"30\">15<\/td>\n<td width=\"30\">16<\/td>\n<td width=\"31\">18<\/td>\n<td width=\"30\">16<\/td>\n<td width=\"30\">15<\/td>\n<td width=\"28\">13<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Solution:<br><img src=\"https:\/\/farm5.staticflickr.com\/4878\/45021399754_9daca84214_o.png\" alt=\"RD Sharma Class 10 Chapter 7 Statistics \" width=\"261\" height=\"294\"><\/p>\n<p>Question 3.<br>If the mean of the following data is 20.6. Find the value of p. (C.B.S.E. 1997)<\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td width=\"28\">X<\/td>\n<td width=\"39\">10<\/td>\n<td width=\"35\">15<\/td>\n<td width=\"39\">p<\/td>\n<td width=\"34\">25<\/td>\n<td width=\"31\">35<\/td>\n<\/tr>\n<tr>\n<td width=\"28\">y<\/td>\n<td width=\"39\">3<\/td>\n<td width=\"35\">10<\/td>\n<td width=\"39\">25<\/td>\n<td width=\"34\">7<\/td>\n<td width=\"31\">5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Solution:<br><img src=\"https:\/\/farm5.staticflickr.com\/4854\/31874701748_6b57aceb0e_o.png\" alt=\"Statistics Class 10 RD Sharma \" width=\"373\" height=\"456\"><\/p>\n<p>Question 4.<br>If the mean of the following data is 15, find p. (C.B.S.E. 1992C)<\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td width=\"29\">X<\/td>\n<td width=\"36\">5<\/td>\n<td width=\"41\">10<\/td>\n<td width=\"35\">15<\/td>\n<td width=\"38\">20<\/td>\n<td width=\"33\">25<\/td>\n<\/tr>\n<tr>\n<td width=\"29\">f<\/td>\n<td width=\"36\">6<\/td>\n<td width=\"41\">P<\/td>\n<td width=\"35\">6<\/td>\n<td width=\"38\">10<\/td>\n<td width=\"33\">5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Solution:<br><img src=\"https:\/\/farm2.staticflickr.com\/1928\/31874701868_a98f11a48e_o.png\" alt=\"RD Sharma Class 10 Solutions Statistics \" width=\"362\" height=\"468\"><\/p>\n<p>Question 5.<br>Find the value of p for the following distribution whose mean is 16.6.<\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td width=\"28\">X<\/td>\n<td width=\"34\">8<\/td>\n<td width=\"30\">12<\/td>\n<td width=\"30\">15<\/td>\n<td width=\"32\">P<\/td>\n<td width=\"29\">20<\/td>\n<td width=\"30\">25<\/td>\n<td width=\"29\">30<\/td>\n<\/tr>\n<tr>\n<td width=\"28\">f<\/td>\n<td width=\"34\">12<\/td>\n<td width=\"30\">16<\/td>\n<td width=\"30\">20<\/td>\n<td width=\"32\">24<\/td>\n<td width=\"29\">16<\/td>\n<td width=\"30\">8<\/td>\n<td width=\"29\">4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Solution:<br>Mean = 16.6<br><img src=\"https:\/\/farm2.staticflickr.com\/1917\/31874702108_c1c1d10cf4_o.png\" alt=\"RD Sharma Class 10 Solutions Chapter 7 Statistics \" width=\"332\" height=\"489\"><\/p>\n<p>Question 6.<br>Find the missing value of p for the following distribution whose mean is 12.58. (C.B.S.E. 1992C)<\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td width=\"25\">X<\/td>\n<td width=\"31\">5<\/td>\n<td width=\"33\">8<\/td>\n<td width=\"33\">10<\/td>\n<td width=\"36\">12<\/td>\n<td width=\"31\">P<\/td>\n<td width=\"36\">20<\/td>\n<td width=\"31\">25<\/td>\n<\/tr>\n<tr>\n<td width=\"25\">f<\/td>\n<td width=\"31\">2<\/td>\n<td width=\"33\">5<\/td>\n<td width=\"33\">8<\/td>\n<td width=\"36\">22<\/td>\n<td width=\"31\">7<\/td>\n<td width=\"36\">4<\/td>\n<td width=\"31\">2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Solution:<br><img src=\"https:\/\/farm5.staticflickr.com\/4903\/31874702258_ba56465dac_o.png\" alt=\"RD Sharma Class 10 Pdf Chapter 7 Statistics \" width=\"326\" height=\"538\"><\/p>\n<p>Question 7.<br>Find the missing frequency (p) for the following distribution whose mean is 7.68.<\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td width=\"27\">X<\/td>\n<td width=\"32\">3<\/td>\n<td width=\"31\">5<\/td>\n<td width=\"36\">7<\/td>\n<td width=\"31\">9<\/td>\n<td width=\"34\">11<\/td>\n<td width=\"32\">13<\/td>\n<\/tr>\n<tr>\n<td width=\"27\">f<\/td>\n<td width=\"32\">6<\/td>\n<td width=\"31\">8<\/td>\n<td width=\"36\">15<\/td>\n<td width=\"31\">P<\/td>\n<td width=\"34\">8<\/td>\n<td width=\"32\">4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Solution:<br><img src=\"https:\/\/farm2.staticflickr.com\/1948\/31874702378_8895a0b2c9_o.png\" alt=\"RD Sharma Solutions Class 10 Chapter 7 Statistics \" width=\"371\" height=\"563\"><\/p>\n<p>Question 8.<br>The following table gives the number of boys of a particular age in a class of 40 students. Calculate the mean age of the students<\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td width=\"114\">Age (in years)<\/td>\n<td width=\"44\">15<\/td>\n<td width=\"45\">16<\/td>\n<td width=\"47\">17<\/td>\n<td width=\"44\">18<\/td>\n<td width=\"46\">19<\/td>\n<td width=\"37\">20<\/td>\n<\/tr>\n<tr>\n<td width=\"114\">No. of students<\/td>\n<td width=\"44\">3<\/td>\n<td width=\"45\">8<\/td>\n<td width=\"47\">10<\/td>\n<td width=\"44\">10<\/td>\n<td width=\"46\">5<\/td>\n<td width=\"37\">4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Solution:<br><img src=\"https:\/\/farm2.staticflickr.com\/1962\/45696150642_651ceebc93_o.png\" alt=\"Learncbse.In Class 10 Chapter 7 Statistics \" width=\"460\" height=\"307\"><\/p>\n<p>Question 9.<br>Candidates from four schools appear in a mathematics test. The data were as follows :<\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td width=\"71\">Schools<\/td>\n<td width=\"155\">No. of Candidates<\/td>\n<td width=\"112\">Average Score<\/td>\n<\/tr>\n<tr>\n<td width=\"71\">I<\/td>\n<td width=\"155\">60<\/td>\n<td width=\"112\">75<\/td>\n<\/tr>\n<tr>\n<td width=\"71\">II<\/td>\n<td width=\"155\">48<\/td>\n<td width=\"112\">80<\/td>\n<\/tr>\n<tr>\n<td width=\"71\">III<\/td>\n<td width=\"155\">Not available<\/td>\n<td width=\"112\">55<\/td>\n<\/tr>\n<tr>\n<td width=\"71\">IV<\/td>\n<td width=\"155\">40<\/td>\n<td width=\"112\">50<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>If the average score of the candidates of all four schools is 66, find the number of candidates that appeared from school III.<br>Solution:<br><img src=\"https:\/\/farm5.staticflickr.com\/4823\/45696150732_9b7a72dbee_o.png\" alt=\"Class 10 RD Sharma Solutions Chapter 7 Statistics \" width=\"685\" height=\"530\"><\/p>\n<p>Question 10.<br>Five coins were simultaneously tossed 1000 times and at each toss, the number of heads was observed. The number of tosses during which 0, 1, 2, 3, 4, and 5 heads were obtained is shown in the table below. Find the mean number of heads per toss.<\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td width=\"156\">No. of heads per toss<\/td>\n<td width=\"114\">No. of tosses<\/td>\n<\/tr>\n<tr>\n<td width=\"156\">0<\/td>\n<td width=\"114\">38<\/td>\n<\/tr>\n<tr>\n<td width=\"156\">1<\/td>\n<td width=\"114\">144<\/td>\n<\/tr>\n<tr>\n<td width=\"156\">2<\/td>\n<td width=\"114\">342<\/td>\n<\/tr>\n<tr>\n<td width=\"156\">3<\/td>\n<td width=\"114\">287<\/td>\n<\/tr>\n<tr>\n<td width=\"156\">4<\/td>\n<td width=\"114\">164<\/td>\n<\/tr>\n<tr>\n<td width=\"156\">5<\/td>\n<td width=\"114\">25<\/td>\n<\/tr>\n<tr>\n<td width=\"156\">Total<\/td>\n<td width=\"114\">1000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Solution:<br><img src=\"https:\/\/farm2.staticflickr.com\/1940\/45696150902_84c0415184_o.png\" alt=\"RD Sharma Class 10 Pdf Free Download Full Book Chapter 7 Statistics \" width=\"504\" height=\"390\"><\/p>\n<p>Question 11.<br>The arithmetic mean of the following data is 14, find the value of k. (C.B.S.E. 2002C)<\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td width=\"30\">X<\/td>\n<td width=\"36\">5<\/td>\n<td width=\"41\">10<\/td>\n<td width=\"38\">15<\/td>\n<td width=\"40\">20<\/td>\n<td width=\"32\">25<\/td>\n<\/tr>\n<tr>\n<td width=\"30\">f<\/td>\n<td width=\"36\">7<\/td>\n<td width=\"41\">k<\/td>\n<td width=\"38\">8<\/td>\n<td width=\"40\">4<\/td>\n<td width=\"32\">5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Solution:<br>Mean=14<br><img src=\"https:\/\/farm2.staticflickr.com\/1957\/45696151012_f5129f84bd_o.png\" alt=\"RD Sharma Class 10 Solution Chapter 7 Statistics \" width=\"282\" height=\"267\"><\/p>\n<p>\u21d2 14 (24 + k) = 360 + 10k<br>\u21d2 336 + 14k = 360 + 10k<br>\u21d2 14k- 10k- 360 -336 24<br>\u21d2 4k = 24<br>\u21d2 k=&nbsp;244&nbsp;= 6 4<br>Hence k = 6<\/p>\n<p>Question 12.<br>The arithmetic mean of the following data is 25, find the value of k. (C.B.S.E. 2001)<\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td width=\"30\">X<\/td>\n<td width=\"35\">5<\/td>\n<td width=\"40\">15<\/td>\n<td width=\"38\">25<\/td>\n<td width=\"41\">35<\/td>\n<td width=\"32\">45<\/td>\n<\/tr>\n<tr>\n<td width=\"30\">f<\/td>\n<td width=\"35\">3<\/td>\n<td width=\"40\">k<\/td>\n<td width=\"38\">3<\/td>\n<td width=\"41\">6<\/td>\n<td width=\"32\">2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Solution:<br>Mean =25<br><img src=\"https:\/\/farm2.staticflickr.com\/1962\/45696151072_b4e47dd144_o.png\" alt=\"RD Sharma Class 10 Pdf Ebook Chapter 7 Statistics \" width=\"306\" height=\"264\"><br>\u21d2 25 (14 + k) = 390 + 15k<br>\u21d2 350 + 25k= 390 + 15k<br>\u21d2&nbsp;25k- 15k = 390 -350<br>\u21d2 10k = 40&nbsp;\u21d2 k =&nbsp;4010&nbsp;= 4<br>Hence k = 4<\/p>\n<p>Question 13.<br>If the mean of the following data is 18.75. Find the value of p.<\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td width=\"29\">\n<p>X<\/p>\n<\/td>\n<td width=\"30\">10<\/td>\n<td width=\"35\">15<\/td>\n<td width=\"46\">P<\/td>\n<td width=\"41\">25<\/td>\n<td width=\"34\">30<\/td>\n<\/tr>\n<tr>\n<td width=\"30\">f<\/td>\n<td width=\"35\">5<\/td>\n<td width=\"46\">10<\/td>\n<td width=\"38\">7<\/td>\n<td width=\"41\">8<\/td>\n<td width=\"34\">2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Solution:<br><img src=\"https:\/\/farm2.staticflickr.com\/1935\/45696151172_60b434c049_o.png\" alt=\"RD Sharma Maths Class 10 Solutions Pdf Free Download Chapter 7 Statistics \" width=\"314\" height=\"256\"><br>\u21d2 460 + 7p = 32 (18.75)<br>\u21d2 460 + 7p = 600<br>\u21d2 7p = 600 \u2013 460 = 140<br>\u21d2 p = 1407&nbsp;= 20<br>\u2234 p = 20<\/p>\n<p>Question 14.<br>Find the value of p, if the mean of the following distribution is 20.<\/p>\n<table border=\"2\">\n<tbody>\n<tr>\n<td width=\"34\">X<\/td>\n<td width=\"42\">15<\/td>\n<td width=\"46\">17<\/td>\n<td width=\"40\">19<\/td>\n<td width=\"57\">20 + p<\/td>\n<td width=\"31\">23<\/td>\n<\/tr>\n<tr>\n<td width=\"34\">f<\/td>\n<td width=\"42\">2<\/td>\n<td width=\"46\">3<\/td>\n<td width=\"40\">4<\/td>\n<td width=\"57\">5p<\/td>\n<td width=\"31\">6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Solution:<br><img src=\"https:\/\/farm2.staticflickr.com\/1934\/45696151272_abb47e9362_o.png\" alt=\"RD Sharma Class 10 Book Pdf Free Download Chapter 7 Statistics \" width=\"367\" height=\"284\"><br>\u21d2 5p<sup>2<\/sup>&nbsp;+ 100p + 295 = 20 (15 + 5p)<br>\u21d2 5p<sup>2<\/sup>&nbsp;+ 100p + 295 = 300 + 100p<br>\u21d2 5p<sup>2<\/sup>&nbsp;+ 100p \u2013 100p = 300 \u2013 295<br>\u21d2 5p<sup>2<\/sup>&nbsp;= 5&nbsp;\u21d2 p<sup>2<\/sup> = 55 = 1<br>\u21d2 P=&nbsp;\u00b11<br>P = -1 i s not possible<br>\u2234 p= 1<\/p>\n<p>Question 15.<br>Find the missing frequencies in the following frequency distribution if it is known that the mean of the distribution is 50.<br><img src=\"https:\/\/farm5.staticflickr.com\/4869\/30807762627_aefbea7ed8_o.png\" alt=\"Class 10 RD Sharma Chapter 7 Statistics \" width=\"396\" height=\"68\"><br>Solution:<br><img src=\"https:\/\/farm5.staticflickr.com\/4883\/45696151372_9e7e852e13_o.png\" alt=\"RD Sharma Maths Class 10 Solutions Chapter 7 Statistics \" width=\"719\" height=\"527\"><\/p>\n<p>We have provided complete details of RD Sharma Class 10 Solutions Chapter 7 Exercise 7.1. If you have any queries related to <a href=\"https:\/\/www.cbse.gov.in\/\" target=\"_blank\" rel=\"noopener\"><strong>CBSE<\/strong><\/a>&nbsp;Class 10, feel free to ask us in the comment section below.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"faqs-on-rd-sharma-class-10-solutions-chapter-7-exercise-71\"><\/span>FAQs on RD Sharma Class 10 Solutions Chapter 7 Exercise 7.1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div id=\"rank-math-faq\" class=\"rank-math-block\">\n<div class=\"rank-math-list \">\n<div id=\"faq-question-1631268278396\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \"><span class=\"ez-toc-section\" id=\"where-can-i-get-rd-sharma-solutions-class-10-maths-chapter-7-exercise-71-free-pdf\"><\/span>Where can I get RD Sharma Solutions Class 10 Maths Chapter 7 Exercise 7.1 Free PDF?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer \">\n\n<p>You can get RD Sharma for Class 10 Maths Solutions Chapter 7 Exercise 7.1 Free PDF from the above article.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1631268429480\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \"><span class=\"ez-toc-section\" id=\"what-are-the-benefits-of-using-rd-sharma-class-10-solutions-chapter-7-exercise-71\"><\/span>What are the benefits of using RD Sharma Class 10 Solutions Chapter 7 Exercise 7.1?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer \">\n\n<p>1. Correct answers according to the latest CBSE guidelines and syllabus.<br \/>2. The RD Sharma Class 10 Solutions Chapter 7 Exercise 7.1 is written in simple language to assist students in their board examination, &amp; competitive examination preparation.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1631268566226\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \"><span class=\"ez-toc-section\" id=\"how-is-rd-sharma-class-10-solutions-chapter-7-exercise-71-helpful-for-board-exams\"><\/span>How is RD Sharma Class 10 Solutions Chapter 7 Exercise 7.1 helpful for board exams?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer \">\n\n<p>For self-evaluation, RD Sharma Class 10 Solutions Chapter 7 Exercise 7.1 provides solutions with thorough descriptions as per term limits specified by the Board. Students will gain valuable experience solving these problems, allowing them to complete the assignment on time.<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>RD Sharma Class 10 Solutions Chapter 7 Exercise 7.1:&nbsp;Students will use the direct technique to find the mean of grouped data in this exercise. Kopykitab&#8217;s RD Sharma Class 10 Solutions is a very beneficial resource for students to refer to and study well for their exams. For full solutions to questions, download RD Sharma Solutions &#8230; <a title=\"RD Sharma Class 10 Solutions Chapter 7 Exercise 7.1 (Updated for 2024)\" class=\"read-more\" href=\"https:\/\/www.kopykitab.com\/blog\/rd-sharma-class-10-solutions-chapter-7-exercise-7-1\/\" aria-label=\"More on RD Sharma Class 10 Solutions Chapter 7 Exercise 7.1 (Updated for 2024)\">Read more<\/a><\/p>\n","protected":false},"author":238,"featured_media":126498,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":""},"categories":[73411,2985,73410],"tags":[3243,9206,73520,4388],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/posts\/126489"}],"collection":[{"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/users\/238"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/comments?post=126489"}],"version-history":[{"count":5,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/posts\/126489\/revisions"}],"predecessor-version":[{"id":507984,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/posts\/126489\/revisions\/507984"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/media\/126498"}],"wp:attachment":[{"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/media?parent=126489"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/categories?post=126489"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/tags?post=126489"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}