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Chapter 4: Q15 (page 143)

In Exercises 13–20, express the indicated degree of likelihood as a probability value between 0 and 1.

Luggage Based on a Harris poll, if you randomly select a traveller, there is a 43% chance that his or her luggage is black.

Short Answer

Expert verified

The probability that a randomly selected traveler has black-colored luggage is 0.43.

Step by step solution

01

 Step 1: Given information

For a randomly selected traveler, there is a 43% chance that their luggage is black.

02

Define probability

Probability is the measure computed in the range of 0 to 1 to express the chance of occurrence of an arbitrary event.

It is calculated using the formula

PA=NumberofoutcomesinfavourofATotalnumberofoutcomes

A probability (between 0 and 1) can be computed from the percentage equivalent measure bydividing it by 100.

03

Calculate the probability 

The percentage of travelers with black luggage is 43%.

The probability of event E (traveler having black luggage) is

PE=43100=0.43

Therefore, the probability of choosing a traveler who has black-colored luggage is 0.43.

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