Question 8A A discrete random variable X has probability distribution given by X 1 2 3 4 5 P(X=x) 0.2 0.25 0.14 a 0.05 The P(X < 2) is a.0.55 b.0.45 c.0.36
Question 8A A discrete random variable X has probability distribution given by X 1 2 3 4 5 P(X=x) 0.2 0.25 0.14 a 0.05 The P(X < 2) is a.0.55 b.0.45 c.0.36
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question 8A
A discrete random variable X has probability distribution given by
X |
1 |
2 |
3 |
4 |
5 |
P(X=x) |
0.2 |
0.25 |
0.14 |
a |
0.05 |
The P(X < 2) is
a.0.55
b.0.45
c.0.36
d.0.20
Question 8B
Suppose the warranty records show that the probability that a new computer needs a warranty repair in the first 90 days is 0.05. A sample of three new computers was selected.
What is the probability that at least one needs a warranty repair?
a.0.8574
b.0.0475
c.0.1426
d.0.050
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