f (x) { kx, -1 < r < 1 0, kx², -1

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter2: Working With Real Numbers
Section2.6: Rules For Multiplication
Problem 49WE
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2.1) Suppose a random variable X has a probability density function in the attached image.

a) Find the value of k that makes this a probability density function.

b) Find the expected value of X.

 

kx2, -1<x <1
x < 1
f (x) =
0,
elsewhere
Transcribed Image Text:kx2, -1<x <1 x < 1 f (x) = 0, elsewhere
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