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CORN 9) The following table gives motorcyclists who were in an accident. Some wore a helmet while others did not wear a helmet. Also, some were injured while others were not injured. Head Injuries Not Injured Wore Helmet 905 650 No Helmet 480 2330 a) If one of the subjects is randomly selected, find the probability they suffered a head injury. b) If one of the subjects is randomly selected, find the probability they wore a helmet and had a head injury. c) If one of the subjects is randomly selected, find the probability they wore a helmet given they were not injured. d) If two of the subjects are randomly selected, find the probability they both suffered head injuries. (008 Simple Inside GOOD SOURCE OF B ESSENTIAL VITAMINS & MINERALS NO ARTIFICIAL COLORS OR FLAVORS Kellogg's CORN 6) Suppose 78% of students say they are satisfied with their college experience. Assuming a binomial situation, round all answer to the nearest ten thousandth or 100™ percent [.1234 = 12.34% ]. Show what you put into %3D your calculator. a) If 12 students are randomly selected, find the probability that exactly 6 say they are satisfied. b) If 12 students are randomly selected, find the probability that less than half are satisfied. c) If 12 students are randomly selected, find the probability that more than 9 are satisfied. ERVING ESTION d) If 300 students randomly selected, find the probability that at least 225 are satisfied. sugerida GED TO EXTURE e) When 300 students are randomly selected, find the mean and standard deviation for the number who are do para i textura satisfied. 7) The lengths of pregnancies are normally distributed with a mean of 268 days and standard deviation of 15 days. Let RV X represent the length of a pregnancy. Show work including diagrams. a) Find the probability that the length of a pregnancy is more than 280 days. b) Find the length of pregnancy that represents P15. c) Find P(250

CORN 9) The following table gives motorcyclists who were in an accident. Some wore a helmet while others did not wear a helmet. Also, some were injured while others were not injured. Head Injuries Not Injured Wore Helmet 905 650 No Helmet 480 2330 a) If one of the subjects is randomly selected, find the probability they suffered a head injury. b) If one of the subjects is randomly selected, find the probability they wore a helmet and had a head injury. c) If one of the subjects is randomly selected, find the probability they wore a helmet given they were not injured. d) If two of the subjects are randomly selected, find the probability they both suffered head injuries. (008 Simple Inside GOOD SOURCE OF B ESSENTIAL VITAMINS & MINERALS NO ARTIFICIAL COLORS OR FLAVORS Kellogg's CORN 6) Suppose 78% of students say they are satisfied with their college experience. Assuming a binomial situation, round all answer to the nearest ten thousandth or 100™ percent [.1234 = 12.34% ]. Show what you put into %3D your calculator. a) If 12 students are randomly selected, find the probability that exactly 6 say they are satisfied. b) If 12 students are randomly selected, find the probability that less than half are satisfied. c) If 12 students are randomly selected, find the probability that more than 9 are satisfied. ERVING ESTION d) If 300 students randomly selected, find the probability that at least 225 are satisfied. sugerida GED TO EXTURE e) When 300 students are randomly selected, find the mean and standard deviation for the number who are do para i textura satisfied. 7) The lengths of pregnancies are normally distributed with a mean of 268 days and standard deviation of 15 days. Let RV X represent the length of a pregnancy. Show work including diagrams. a) Find the probability that the length of a pregnancy is more than 280 days. b) Find the length of pregnancy that represents P15. c) Find P(250

College Algebra
College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...
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CORN 9) The following table gives motorcyclists who were in an accident. Some wore a helmet while others did not wear a helmet. Also, some were injured while others were not injured. Head Injuries Not Injured Wore Helmet 905 650 No Helmet 480 2330 a) If one of the subjects is randomly selected, find the probability they suffered a head injury. b) If one of the subjects is randomly selected, find the probability they wore a helmet and had a head injury. c) If one of the subjects is randomly selected, find the probability they wore a helmet given they were not injured. d) If two of the subjects are randomly selected, find the probability they both suffered head injuries. (008
Transcribed Image Text:CORN 9) The following table gives motorcyclists who were in an accident. Some wore a helmet while others did not wear a helmet. Also, some were injured while others were not injured. Head Injuries Not Injured Wore Helmet 905 650 No Helmet 480 2330 a) If one of the subjects is randomly selected, find the probability they suffered a head injury. b) If one of the subjects is randomly selected, find the probability they wore a helmet and had a head injury. c) If one of the subjects is randomly selected, find the probability they wore a helmet given they were not injured. d) If two of the subjects are randomly selected, find the probability they both suffered head injuries. (008
Simple Inside GOOD SOURCE OF B ESSENTIAL VITAMINS & MINERALS NO ARTIFICIAL COLORS OR FLAVORS Kellogg's CORN 6) Suppose 78% of students say they are satisfied with their college experience. Assuming a binomial situation, round all answer to the nearest ten thousandth or 100™ percent [.1234 = 12.34% ]. Show what you put into %3D your calculator. a) If 12 students are randomly selected, find the probability that exactly 6 say they are satisfied. b) If 12 students are randomly selected, find the probability that less than half are satisfied. c) If 12 students are randomly selected, find the probability that more than 9 are satisfied. ERVING ESTION d) If 300 students randomly selected, find the probability that at least 225 are satisfied. sugerida GED TO EXTURE e) When 300 students are randomly selected, find the mean and standard deviation for the number who are do para i textura satisfied. 7) The lengths of pregnancies are normally distributed with a mean of 268 days and standard deviation of 15 days. Let RV X represent the length of a pregnancy. Show work including diagrams. a) Find the probability that the length of a pregnancy is more than 280 days. b) Find the length of pregnancy that represents P15. c) Find P(250 <x<300) Y 8) The lengths of pregnancies are normally distributed with a mean of 268 days and standard deviation of 15 days. Let RV X represent the length of a pregnancy. Show work including diagrams. TO g) a) If samples of size 20 pregnancies is taken, find the mean and standard deviation of the SDSM. b) If a sample of 20 pregnancies is taken, find the probability that the sample mean is less than 262 days.
Transcribed Image Text:Simple Inside GOOD SOURCE OF B ESSENTIAL VITAMINS & MINERALS NO ARTIFICIAL COLORS OR FLAVORS Kellogg's CORN 6) Suppose 78% of students say they are satisfied with their college experience. Assuming a binomial situation, round all answer to the nearest ten thousandth or 100™ percent [.1234 = 12.34% ]. Show what you put into %3D your calculator. a) If 12 students are randomly selected, find the probability that exactly 6 say they are satisfied. b) If 12 students are randomly selected, find the probability that less than half are satisfied. c) If 12 students are randomly selected, find the probability that more than 9 are satisfied. ERVING ESTION d) If 300 students randomly selected, find the probability that at least 225 are satisfied. sugerida GED TO EXTURE e) When 300 students are randomly selected, find the mean and standard deviation for the number who are do para i textura satisfied. 7) The lengths of pregnancies are normally distributed with a mean of 268 days and standard deviation of 15 days. Let RV X represent the length of a pregnancy. Show work including diagrams. a) Find the probability that the length of a pregnancy is more than 280 days. b) Find the length of pregnancy that represents P15. c) Find P(250 <x<300) Y 8) The lengths of pregnancies are normally distributed with a mean of 268 days and standard deviation of 15 days. Let RV X represent the length of a pregnancy. Show work including diagrams. TO g) a) If samples of size 20 pregnancies is taken, find the mean and standard deviation of the SDSM. b) If a sample of 20 pregnancies is taken, find the probability that the sample mean is less than 262 days.
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