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In Exercises 29-34 the mean and standard deviation of a nor- mal variable X are given. Find the indicated probability. 30. X is the standard normal variable Z; P(X ≤ -1.5). 32. μ = 100, σ = 16; P(80 ≤ x ≤ 120)

In Exercises 29-34 the mean and standard deviation of a nor- mal variable X are given. Find the indicated probability. 30. X is the standard normal variable Z; P(X ≤ -1.5). 32. μ = 100, σ = 16; P(80 ≤ x ≤ 120)

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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In Exercises 29-34 the mean and standard deviation of a nor- mal variable X are given. Find the indicated probability. 30. X is the standard normal variable Z; P(X ≤ -1.5). 32. μ = 100, σ = 16; P(80 ≤ x ≤ 120)
Transcribed Image Text:In Exercises 29-34 the mean and standard deviation of a nor- mal variable X are given. Find the indicated probability. 30. X is the standard normal variable Z; P(X ≤ -1.5). 32. μ = 100, σ = 16; P(80 ≤ x ≤ 120)
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