   Chapter 9.CR, Problem 30CR ### Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698

#### Solutions

Chapter
Section ### Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698
Textbook Problem
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# Given a die in the shape of a regular octahedron, find the probability that one roll producesa) an even- number resultb) a result of 4 or more.

To determine

(a)

To find:

The probability that one roll produces, an even-number result.

Explanation

Given:

A die in the shape of a regular octahedron, find the probability that one roll produces.

An even-number result

Calculation:

Let us consider the die in the shape of a regular octahedron of the figure.

When throwing a regular octahedron die, there are eight outcomes.

Total number of outcomes={1,2,3,4,5,6,7,8}=8

On a regular octahedron die, there are four even numbers of possibilities.

Total number of possibilities={2,4,6,8}=4

To determine

(b)

To find:

The probability that one roll produces, a result of 4 or more.

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