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Chapter 5: Q 5.2. (page 200)

Concerning the equal-likelihood model of probability,

(a). what is it?

(b). how is the probability of an event found?

Short Answer

Expert verified

Part (a) All outcomes of a sample space for an experiment are equally likely, according to the equal-likelihood model of probability.

Part (b) The total number of favorable outcomes divided by the total number of outcomes in the sample space.

Step by step solution

01

Part (a) Step 1. Given information.

The given statement is:

Concerning the equal-likelihood model of probability.

02

Part (a) Step 2. Define the equal-likelihood model of probability.

All outcomes of a sample space for an experiment are equally likely, according to the equal-likelihood model of probability.

For instance, suppose the experiment involves selecting a random individual from a population of a fixed size. Because all of the events are equally likely, the probability of picking a person is the same for everyone.

03

Part (b) Step 1. Determine that how is the probability of an event found.

The probability of an event in the equal-likelihood model of probability is simply the total number of favorable outcomes divided by the total number of outcomes in the sample space.

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