A survey includes demographic questions, such as, "How old are you?". The following chart summarizes the age-related information collected from the 449 respondents to the survey. Age < 20 Number of Customers 83 20-29 58 30-39 97 40-49 63 50-59 72 > 60 76 What is the probability that a randomly selected respondent is at least 40? (Round answers to 4 decimal places.)
A survey includes demographic questions, such as, "How old are you?". The following chart summarizes the age-related information collected from the 449 respondents to the survey. Age < 20 Number of Customers 83 20-29 58 30-39 97 40-49 63 50-59 72 > 60 76 What is the probability that a randomly selected respondent is at least 40? (Round answers to 4 decimal places.)
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
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Transcribed Image Text:A survey includes demographic questions, such as, "How old are you?". The following chart summarizes the
age-related information collected from the 449 respondents to the survey.
IT
Age
< 20
Number of Customers
83
20-29
58
30-39
97
40-49
63
50-59
72
2 60
76
What is the probability that a randomly selected respondent is at least 40?
(Round answers to 4 decimal places.)
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Expert Solution
Step 1
The table is:
| Age | Number of Customers |
| <20 | 83 |
| 20-29 | 58 |
| 30-39 | 97 |
| 40-49 | 63 |
| 50-59 | 72 |
| ≥60 | 76 |
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