{"id":1725,"date":"2022-10-06T20:01:00","date_gmt":"2022-10-07T00:01:00","guid":{"rendered":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/?p=1725"},"modified":"2022-10-06T08:06:29","modified_gmt":"2022-10-06T12:06:29","slug":"math-9-lesson-4-10-6-2022","status":"publish","type":"post","link":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/2022\/10\/06\/math-9-lesson-4-10-6-2022\/","title":{"rendered":"Math 9, Lesson 4, 10\/6\/2022"},"content":{"rendered":"\n<p>We start on probability. Students should have learned some basic concepts before about simple probability, the concept of a sample space with events consisting of some outcomes. In this chapter ,we study probabilities with multiple stages.<\/p>\n\n\n\n<p>When a random experiment involves two stages, we can use a rectangular grid, called a probability diagram, to represent the sample space to help us find probabilities.<\/p>\n\n\n\n<p>If a random experiment has two or more stages, we can use a tree diagram to represent the process, which should help us see all the possible outcomes and figure out the outcomes associated with a particular event.<\/p>\n\n\n\n<p>We then talk about mutually exclusive events. In a sample space, two events are mutually exclusive if they cannot occur at the same time. If A and B are two mutually exclusive events, the the probability of A or B occurring is: P(A or B) = P(A) + P(B).<\/p>\n\n\n\n<p>Note, there is no class next Thursday 10\/13 following school&#8217;s calendar<\/p>\n\n\n\n<p>Homework:<\/p>\n\n\n\n<p>Print these pages (pages are links. Click to download):&nbsp;<a href=\"http:\/\/blog.newtonchineseschool.org\/wangweidong\/files\/2016\/09\/WorkBookP11.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Page 1<\/a>,&nbsp;<a href=\"http:\/\/blog.newtonchineseschool.org\/wangweidong\/files\/2016\/09\/WorkBookP15.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Page 2<\/a><\/p>\n\n\n\n<p>Workbook Page 11, #1 \u2013 #5, #21.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We start on probability. Students should have learned some basic concepts before about simple probability, the concept of a sample space with events consisting of some outcomes. In this chapter ,we study probabilities with multiple stages. When a random experiment involves two stages, we can use a rectangular grid, called a probability diagram, to represent [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0},"categories":[30,4,20,3],"tags":[],"_links":{"self":[{"href":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/wp-json\/wp\/v2\/posts\/1725"}],"collection":[{"href":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/wp-json\/wp\/v2\/comments?post=1725"}],"version-history":[{"count":3,"href":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/wp-json\/wp\/v2\/posts\/1725\/revisions"}],"predecessor-version":[{"id":1733,"href":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/wp-json\/wp\/v2\/posts\/1725\/revisions\/1733"}],"wp:attachment":[{"href":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/wp-json\/wp\/v2\/media?parent=1725"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/wp-json\/wp\/v2\/categories?post=1725"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/wp-json\/wp\/v2\/tags?post=1725"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}