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Chapter 4: Q15 (page 143)

In Exercises 13鈥�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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Most popular questions from this chapter

In Exercises 9鈥�20, use the data in the following table, which lists drive-thru order accuracy at popular fast food chains (data from a QSR Drive-Thru Study). Assume that orders are randomly selected from those included in the table.

惭肠顿辞苍补濒诲鈥檚

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Fast Food Drive-Thru Accuracy If one order is selected, find the probability of getting an order that is not accurate or is from 奥别苍诲测鈥檚. Are the events of selecting an order that is not accurate and selecting an order from 奥别苍诲测鈥檚 disjoint events?

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