nmente Dsci 245-11: Chapter 5 Homework × Doane, Applied Statistics in Bus Econom

Question

nmente Dsci 245-11: Chapter 5 Homework × Doane, Applied Statistics in Bus Economics, Se-Prebuilt Instruc pter 5 Homework Question 5 (of 14) value: 10.00 points Over 1,000 people try to climb Mt Everest every year. Of those who try to climb Everest, 31 percent succeed. The probability that a climber is at least 60 years old is 0.04. The probability that a climber is at least 60 years old and succeeds in climbing Everest is 0.005 (a) Find the probability of success, given that a climber is at least 60 years old. bility (b) Is success in climbing Everest independent of age? O Yes No References eBook & Resources Worksheet Learning Objective: 05-03 Apply the definitions and rules of probability Difficulty: 3 Hard Type here to search 50

Explanation / Answer

Solution:- Given that information : p(success) = 0.31; p(>60)=0.04; p(success & >60)=0.005.
  
A) Probability = .005/.04 = 0.125

B) option a. Yes

=> if independent then p(success|>60) should equal p(success)

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