Given a normal distribution with μ=100 and σ=10, complete parts (a) through (d) a. What is the probability that X >85? b. What is the probability that X<75? c. What is the probability that X<95 or X>130?

Given a normal distribution with μ=100 and σ=10, complete parts (a) through (d) a. What is the probability that X >85? b. What is the probability that X<75? c. What is the probability that X<95 or X>130?

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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Question

Given a normal distribution with μ=100 and σ=10,

complete parts (a) through (d)

a. What is the probability that X >85?

b. What is the probability that X<75?

c. What is the probability that X<95 or X>130?

d. 80% of the values are between what two X-values (symmetrically distributed around the mean)? 80% of the values are greater than ____ and less than ____?

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