Chapter 6, Problem 7P

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8th Edition

Frederick J Gravetter + 1 other

ISBN: 9781133956570

Textbook Problem

What proportion of a normal distribution is located between each of the following *z*-score boundaries?

**a.** *z* = −0.25 and *z* = +0.25

**b.** *z* = −0.67 and *z* = +0.67

**c.** *z* = −1.20 and *z =* +1.20

**a.**

To determine

**To find:** The proportion between

Explanation

**Given info:**

The standard normal distribution with

**Calculation:**

**b.**

To determine

**To find:** The proportion between

**c.**

To determine

**To find:** The proportion between

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