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Chapter 5: Q9 (page 220)

In Exercises 6–10, use the following: Five American Airlines flights are randomly selected, and the table in the margin lists the probabilities for the number that arrive on time (based on data from the Department of Transportation). Assume that five flights are randomly selected.

What does the probability of 0+ indicate? Does it indicate that among five randomly selectedflights, it is impossible for none of them to arrive on time?

x

P(x)

0

0+

1

0.006

2

0.051

3

0.205

4

0.409

5

0.328

Short Answer

Expert verified

The term “0+” represents that the likelihood of happening is very small positive value. It cannot be interpreted as that it is impossible for none of the five flights to arrive on time.

Step by step solution

01

Given information

The probability distribution for the five American airlines flights is provided.

Let x be the number of flights.

02

Describe what 0+ probability indicates.

In the probability distribution table, the value 0+ indicates that the probability corresponding to x = 0 is a very small positive number.

Therefore, it does not describe that it is impossible for none of the five randomly selected flights to arrive on time.

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