{"id":655,"date":"2023-09-26T15:40:29","date_gmt":"2023-09-26T15:40:29","guid":{"rendered":"http:\/\/localhost\/ecole9ja\/?p=655"},"modified":"2023-09-26T15:42:12","modified_gmt":"2023-09-26T15:42:12","slug":"week-9-jss-1-third-term-mathematics-lesson-notes","status":"publish","type":"post","link":"https:\/\/ecolebooks.com\/nigeria\/posts\/week-9-jss-1-third-term-mathematics-lesson-notes\/","title":{"rendered":"Week 9 &#8211; Jss 1 Third Term Mathematics Lesson Notes"},"content":{"rendered":"<p><strong>WEEK 9<br \/>\n<\/strong><strong>TOPIC: STATISTICS<br \/>\n<\/strong>MEANING AND USES OF STATISTICS<br \/>\nStatistics is the branch of mathematics which deals with the study of data. It involves<\/p>\n<ul>\n<li>Gathering (collecting data)\n<\/li>\n<li>Sorting and tabulating data\n<\/li>\n<li>Presenting data usually means of diagrams\n<\/li>\n<li>Interpreting results.\n<\/li>\n<\/ul>\n<p><strong>USES OF STATISTICS<br \/>\n<\/strong><\/p>\n<ul>\n<li>For record keeping\n<\/li>\n<li>To forecast or predict future events\n<\/li>\n<li>For planning purposes\n<\/li>\n<li>For decision making\n<\/li>\n<li>\n<div>To gather information this can be passes from one source to another.\n<\/div>\n<p>\u00a0<strong>TYPES OF DATA<br \/>\n<\/strong><\/li>\n<\/ul>\n<p>Qualitative data: this is non- numerical data which can only be described in words. Examples are name, place colour, sex etc.<br \/>\nQuantitative data: A numerical data which is usually given in form of measurement.<\/p>\n<p>\u00a0<strong>FREQUENCY TABLE<br \/>\n<\/strong>EXAMPLE 1: The following figures show the number of children per family in a sample of 40 household. 1, 2, 4, 3, 5, 3, 8, 3, 2, 3, 4, 5, 6, 5, 4, 2, 1, 3, 2, 4, 5, 3, 8, 7, 6, 5, 4, 5, 7, 6, 3, 8, 6, 3, 5, 7, 5, 4, 3.<\/p>\n<ol>\n<li>Use a tally mark to prepare a frequency table for the data\n<\/li>\n<li>What is the highest frequency of numbers of children per family?\n<\/li>\n<\/ol>\n<p>\u00a0<br \/>\n\u00a0<img decoding=\"async\" align=\"left\" src=\"https:\/\/ecolebooks.com\/nigeria\/wp-content\/uploads\/9jalessonsimages\/092623_1540_Week9Jss11.png\" alt=\"\"\/><img decoding=\"async\" align=\"left\" src=\"https:\/\/ecolebooks.com\/nigeria\/wp-content\/uploads\/9jalessonsimages\/092623_1540_Week9Jss12.png\" alt=\"\"\/>Solution<br \/>\n<img decoding=\"async\" align=\"left\" src=\"https:\/\/ecolebooks.com\/nigeria\/wp-content\/uploads\/9jalessonsimages\/092623_1540_Week9Jss13.png\" alt=\"\"\/>NUMBER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0TALLY\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0FREQUENCY<br \/>\n1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a02<br \/>\n2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\/\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a05<br \/>\n<img decoding=\"async\" align=\"left\" src=\"https:\/\/ecolebooks.com\/nigeria\/wp-content\/uploads\/9jalessonsimages\/092623_1540_Week9Jss14.png\" alt=\"\"\/>3\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\/  \/\/\/\/\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a09<br \/>\n<img decoding=\"async\" align=\"left\" src=\"https:\/\/ecolebooks.com\/nigeria\/wp-content\/uploads\/9jalessonsimages\/092623_1540_Week9Jss15.png\" alt=\"\"\/>4\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\/  \/\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a06<br \/>\n<img decoding=\"async\" align=\"left\" src=\"https:\/\/ecolebooks.com\/nigeria\/wp-content\/uploads\/9jalessonsimages\/092623_1540_Week9Jss16.png\" alt=\"\"\/>5\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\/  \/\/\/\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a08<br \/>\n6\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\/\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a04<br \/>\n7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a03<br \/>\n<img decoding=\"async\" align=\"left\" src=\"https:\/\/ecolebooks.com\/nigeria\/wp-content\/uploads\/9jalessonsimages\/092623_1540_Week9Jss17.png\" alt=\"\"\/>8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a03<br \/>\n<img decoding=\"async\" align=\"left\" src=\"https:\/\/ecolebooks.com\/nigeria\/wp-content\/uploads\/9jalessonsimages\/092623_1540_Week9Jss18.png\" alt=\"\"\/>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a040<br \/>\n3 is the highest frequency of numbers of children<br \/>\nExample 2: In a further mathematics test the following marks were obtained by a group of students 85, 75, 95, 80, 75, 80, 90, 84, 95, 84, 85, 80, 80, 75, 80, 75, 80, 84, 81, 80, 75, 90, 80.<br \/>\nUse tally mark to prepare a frequency table for this data.<br \/>\n<img decoding=\"async\" align=\"left\" src=\"https:\/\/ecolebooks.com\/nigeria\/wp-content\/uploads\/9jalessonsimages\/092623_1540_Week9Jss19.png\" alt=\"\"\/>Solution:<br \/>\n<img decoding=\"async\" align=\"left\" src=\"https:\/\/ecolebooks.com\/nigeria\/wp-content\/uploads\/9jalessonsimages\/092623_1540_Week9Jss110.png\" alt=\"\"\/><img decoding=\"async\" align=\"left\" src=\"https:\/\/ecolebooks.com\/nigeria\/wp-content\/uploads\/9jalessonsimages\/092623_1540_Week9Jss111.png\" alt=\"\"\/>NUMBER\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0TALLY\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0FREQUENCY<br \/>\n<img decoding=\"async\" align=\"left\" src=\"https:\/\/ecolebooks.com\/nigeria\/wp-content\/uploads\/9jalessonsimages\/092623_1540_Week9Jss112.png\" alt=\"\"\/>75\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\/\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a05<br \/>\n<img decoding=\"async\" align=\"left\" src=\"https:\/\/ecolebooks.com\/nigeria\/wp-content\/uploads\/9jalessonsimages\/092623_1540_Week9Jss113.png\" alt=\"\"\/>80\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\/\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a09<br \/>\n81\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a01<br \/>\n84\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/  \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a03<br \/>\n85\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a02<br \/>\n90\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\/\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a03<br \/>\n95\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a02<\/p>\n<ol>\n<li>How many students took part in the test? 25 students\n<\/li>\n<li>Which mark had the highest frequency? 80 marks<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>WEEK 9 TOPIC: STATISTICS MEANING AND USES OF STATISTICS Statistics is the branch of mathematics&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,74],"tags":[],"class_list":["post-655","post","type-post","status-publish","format-standard","hentry","category-posts","category-third-term-jss1-mathematics"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts\/655","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/comments?post=655"}],"version-history":[{"count":1,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts\/655\/revisions"}],"predecessor-version":[{"id":656,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts\/655\/revisions\/656"}],"wp:attachment":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/media?parent=655"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/categories?post=655"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/tags?post=655"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}