Find the mathematical expectation and the variance of g(X) = 4X + 3. %3!

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 9PPS
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b) If X is a random variable with the following function:
-1< x < 2,
elsewhere.
Find the mathematical expectation and the variance of g(X) = 4X + 3.
Sx²/3,
0,
f(w) = {**/3.
c) If we have the following density function: f(x) = cx, 0 <x < 2:
3. F(x)
Find 1. C
2. V(x)
Transcribed Image Text:b) If X is a random variable with the following function: -1< x < 2, elsewhere. Find the mathematical expectation and the variance of g(X) = 4X + 3. Sx²/3, 0, f(w) = {**/3. c) If we have the following density function: f(x) = cx, 0 <x < 2: 3. F(x) Find 1. C 2. V(x)
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