Choose a person age 19 to 25 years at random and ask, "In the past four days, how many days did you do physical exercise or work out?" Based on a large sample survey, here is a discrete probability model for the answer you will get: #of Days 0 2 4 Probability 0.61 0.10 0.08 0.17 0.04 What is the mean number of days that randomly chosen 19- to 25-year-olds worked out in the past four days? (Fill in the blank below and give your answer to 2 decimal places.) The mean is
Choose a person age 19 to 25 years at random and ask, "In the past four days, how many days did you do physical exercise or work out?" Based on a large sample survey, here is a discrete probability model for the answer you will get: #of Days 0 2 4 Probability 0.61 0.10 0.08 0.17 0.04 What is the mean number of days that randomly chosen 19- to 25-year-olds worked out in the past four days? (Fill in the blank below and give your answer to 2 decimal places.) The mean is
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Transcribed Image Text:Choose a person age 19 to 25 years at random and ask, "In the past four days, how many days did you do physical exercise or work out?" Based on a large sample survey, here is a discrete probability model for
the answer you will get:
#of Days
0
2
4
Probability
0.61
0.10
0.08
0.17
0.04
What is the mean number of days that randomly chosen 19- to 25-year-olds worked out in the past four days?
(Fill in the blank below and give your answer to 2 decimal places.)
The mean is
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