Answered: 18. Let X be normally distributed with… | bartleby

Algebra & Trigonometry with Analytic Geometry

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter7: Analytic Trigonometry

Section7.6: The Inverse Trigonometric Functions

Problem 94E

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Question

18. Let X be normally distributed with mean μ = 2,500 and stan-
dard deviation σ = 800.
a. Find x such that P(X ≤ x) = 0.9382.
b. Find x such that P(X>x) = 0.025.
ة نفـة
C.
Find x such that P(2500 <X<x) = 0.1217.
d. Find x such that P(X<x) = 0.4840.

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