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. 1385/4365 =032. b) If one of the subjects is randomly selected, find the probability they wore a helmet and had a head injury. 905/4365 =0-20 c) If one of the subjects is randomly selected, find the probability they wore a helmet given they were not injured. 650/4365=0.098 d) If two of the subjects are randomly selected, find the probability they both suffered head injuries.

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. 1385/4365 =032. b) If one of the subjects is randomly selected, find the probability they wore a helmet and had a head injury. 905/4365 =0-20 c) If one of the subjects is randomly selected, find the probability they wore a helmet given they were not injured. 650/4365=0.098 d) If two of the subjects are randomly selected, find the probability they both suffered head injuries.

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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