tag:blogger.com,1999:blog-30446290.post7886215978716575956..comments2023-10-11T22:15:43.123-12:00Comments on Math Homework Help: Everything is NumberUnknownnoreply@blogger.comBlogger3125tag:blogger.com,1999:blog-30446290.post-67608011043652343072007-07-26T01:05:00.000-12:002007-07-26T01:05:00.000-12:00I need some help with my grade 9 probability quest...I need some help with my grade 9 probability questions and would be so grateful if you can answer soon. The topic is on Probability and I'm finding it difficult. There are these questions that I don't understand:<BR/><BR/>1. For Year 9 students, 20% have a shoes size greater than 10 1/2, but 95% have a shoe size less than 11 1/2. What is the chance of a Year 9 student having a shoe size:<BR/><BR/>a) Less than or equal to 10 1/2<BR/>b) 11 1/2 or larger<BR/>c) between 10 1/2 and 11 1/2.<BR/><BR/>2. If a die is rolled twelve times, how many times, on average, would you expect the result to be:<BR/><BR/>a) a six?<BR/>b) an odd number?<BR/>c) a number greater than 2?<BR/><BR/>3. A survey of Kylie Crescent shows that 20% of the families have 1 child, 45% have 2 children, 15% have 3 children and 10% have more than 3 children. What is the probability that a family has chosen at random will have: <BR/><BR/>a) 2 children?<BR/>b) more than 2 children?<BR/>c) at least 2 children?<BR/>d) no children?<BR/><BR/>I apologize for the amount of questions I am asking of you but I have extreme difficulty with the topic and I really want someone to enlighten me about this. <BR/><BR/>Thank you for your help and I can't wait to receive your reply.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-30446290.post-52410398712120889542007-05-08T22:59:00.000-12:002007-05-08T22:59:00.000-12:00Ofcourse. You are most welcome.Feal free to ask me...Ofcourse. You are most welcome.<BR/>Feal free to ask me your doubts and problems.Mathhttps://www.blogger.com/profile/11034682217706091229noreply@blogger.comtag:blogger.com,1999:blog-30446290.post-78300967556912257322007-05-08T00:32:00.000-12:002007-05-08T00:32:00.000-12:00So does that mean that you can students in Year 8 ...So does that mean that you can students in Year 8 as well? At school, we are currently learning year 9 mathematics. If I have a problem, will you reply to pupils as young as me?Tomo Torihttps://www.blogger.com/profile/00255663908390149709noreply@blogger.com