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Chapter 5: Q T5.9. (page 337)

Choose an American adult at random. The probability that you choose a woman is 0.52 The probability that the person you choose has never married is 0.25 The probability that you choose a woman who has never married is 0.11. The probability that the person you choose is either a woman or has never been married (or both) is therefore about (a)0.77.(b)0.66.(c)0.44.(d)0.38.(e)0.13.

Short Answer

Expert verified

The correct option is (b)0.66

Step by step solution

01

Step 1. Given

The woman has a probability of 0.52

0.25chance of never marrying.

Women who have never married have a probability of 0.11

02

Step 2. Concept

The probability of an event=numberoffavourableoutcomestotalnumberofoutcomes

03

Step 3. Calculation

The likelihood of a randomly selected individual never marrying or being a woman can be computed as follows:P(Nevermarriedorwoman)=P(Nevermarried)+P(woman)−P(NevermarriedandWoman)=0.25+0.52−0.11=0.66

As a result, 0.66 is the required probability.

As a result, the correct option is (b).

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Most popular questions from this chapter

You want to estimate the probability that the player makes 5or more of 10shots. You simulate 10 shots 25 times and get the following numbers of hits:

5754153434534463417455657 What is your estimate of the probability?

(a) 5/25, or 0.20 (d) 16/25, or 0.64

(b) 11/25, or 0.44 (e) 19/25, or 0.76

(c) 12/25, or 0.48

Teachers and college degrees Select an adult at random. Define events A: a person has earned a college degree, and T: person’s career is teaching. Rank the following probabilities from smallest to largest. Justify your answer.

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