14
QuizMultiple Choice

Probability

Question 14 • CARE_24_25_TX-Mathematical Models with Applications B

The partially filled contingency table gives the relative frequencies of the data on age (in years) and sex from the residents of a retirement home. 60-6970-79Over 79TotalMale0.170.10.13 Female0.20.20.2 Total 1What is the probability that a resident is in the age group 60-69?

Answer
A
0.385
B
0.37
C
0.35
D
0.4

Explanation

To find the probability that a resident is 60–69, add the relative frequencies for that age group across both sexes: 0.17 + 0.20 = 0.37. The probability is 0.37, which is choice b.

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