Consider the three distribution functions below for random variables X, Y, and Z respectively. Fx(x) = Fy (y) 1, -1, x < 0, 0 < x < 1, 1 < x < 2, 2

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter12: Probability
Section12.4: Discrete Random Variables; Applications To Decision Making
Problem 9E
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Consider three random variables X, Y, and Z with distribution functions

Which of the random variables X, Y and Z has a density function?


 
Consider the three distribution functions below for random variables X,
Y, and Z respectively.
Fx(x) =
Fy (y) =
0,
colle we coll
7,
1,
-1,
{
Fz(2)=5,
x < 0,
0 < x < 1,
1<x<2,
2<x<3,
x ≥ 3.
y < 0,
0 ≤ y ≤ 1,
1 ≤ y < 2,
y ≥ 2.
z < 0,
0 ≤ z <3,
z ≥ 3.
Transcribed Image Text:Consider the three distribution functions below for random variables X, Y, and Z respectively. Fx(x) = Fy (y) = 0, colle we coll 7, 1, -1, { Fz(2)=5, x < 0, 0 < x < 1, 1<x<2, 2<x<3, x ≥ 3. y < 0, 0 ≤ y ≤ 1, 1 ≤ y < 2, y ≥ 2. z < 0, 0 ≤ z <3, z ≥ 3.
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