   Chapter 8, Problem 26RE ### 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

# If z is a standard normal score, find Pr ( − 1 ≤ z ≤ − 0.5 ) .

To determine

To calculate: The value of the Pr(1z0.5), if z is the standard normal score.

Explanation

Given Information:

z is a standard normal score.

Refer to the Appendix C of the book.

Formula Used:

The area under the curve is,

Pr(azb)=Pr(az0)Pr(0zb)

Calculation:

Consider the standard normal curve between Pr(1z0.5).

Therefore, the value of Pr(1z0.5) will be,

Pr(1z0.5)=Pr(1z0)Pr(0z0.5)

Appendix C gives the area under the standard normal curve between z=0 and z=z0 for z0

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