Let X be a discrete random variable with the cumulative distribution function: 0 if x < 1 if 1
Let X be a discrete random variable with the cumulative distribution function: 0 if x < 1 if 1
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:Let X be a discrete random variable with the cumulative distribution function:
0
if x < 1
if 1 < x <3
if 3 < x < 5
if 5 <x<7
if x ≥ 7
0.8
0.4
a +0.5
1
If P(3 ≤ x ≤ 7) = 0.9, then P(X ≥ 3) =
0.9
0.7
F(x) =
0.5
a
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