Selecting a Sweater At a men’s clothing store, 12 men

Chapter 4, Problem 25CQ

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QUESTION:

Problem 25CQ

Selecting a Sweater At a men’s clothing store, 12 men purchased blue golf sweaters, 8 purchased green sweaters. 4 purchased gray sweaters, and 7 bought black sweaters. If a customer is selected at random, find the probability that he purchased

a. A blue sweater

b. A green or gray sweater

c. A green or black or blue sweater

d. A sweater that was not black

Questions & Answers

QUESTION:

Problem 25CQ

Selecting a Sweater At a men’s clothing store, 12 men purchased blue golf sweaters, 8 purchased green sweaters. 4 purchased gray sweaters, and 7 bought black sweaters. If a customer is selected at random, find the probability that he purchased

a. A blue sweater

b. A green or gray sweater

c. A green or black or blue sweater

d. A sweater that was not black

ANSWER:

Solution:

Step 1 of 3:

In a men’s clothing store, 12 men purchased blue golf sweaters, 8 purchased green sweaters.

Four of them purchased gray sweaters, and 7 bought black sweaters.

A customer is randomly selected.

We have to find the following probabilities.

  1. A blue sweater.
  2. A green or gray sweater.
  3. A green or black or blue sweater.
  4. A sweater that was not black.

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