Number Number of of Adult Visits Males 0 30 1 60 2 90

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter12: Probability
Section12.3: Conditional Probability; Independent Events; Bayes' Theorem
Problem 65E
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  1. A

    Number Number of of Adult

    Visits Males

    0 30

    1 60

    2 90

    3 or more 120

    Total 300

     

    study was made to investigate the number of times adult males over 30 visit a physician each year. The results for a sample of 300 were:

     



  1. What is the probability of selecting someone who visits a physician twice a year?

 

b. What is the probability of selecting someone who visits a physician?

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