   Chapter 8, Problem 15RE ### Mathematical Applications for the ...

11th Edition
Ronald J. Harshbarger + 1 other
ISBN: 9781305108042

#### Solutions

Chapter
Section ### Mathematical Applications for the ...

11th Edition
Ronald J. Harshbarger + 1 other
ISBN: 9781305108042
Textbook Problem

# Determine whether each function or table in Problems 15-18 represents a discrete probability distribution. Pr ( x ) = x / 15 ,   x = 1 , 2 , 3 , 4 , 5

To determine

Whether the function Pr(x)=x15 where x=1,2,3,4,5 is a discrete probability distribution or not.

Explanation

Given Information:

The function is,

Pr(x)=x15

Where, x=1,2,3,4,5.

Explanation:

A probability of a discrete random variable x is known as discrete probability distribution if it satisfies the condition that for any value of x the probability must be 0Pr(x)1 and the sum of all probability must be 1.

Consider the function, Pr(x)=x15 and x=1,2,3,4,5.

For different values of x, the value of the probability function is given in the table as below,

 x Pr(x)=x15 1 115=0.067 2 215=0.133 3 315=0.2 4 415=0

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