The error, X, in measuring the length of a rivet (in micrometers) has the following probability density function f(x)= 20·x·(3−x)3 243 for 0 ≤ x ≤ 3 and 0 otherwise. a) What is the probability that X > 1? b) What is the probability that X < 1? c) What is the probability that 2.1 < X < 2.7? d) What is the expected value of X (E(X))?
The error, X, in measuring the length of a rivet (in micrometers) has the following probability density function f(x)= 20·x·(3−x)3 243 for 0 ≤ x ≤ 3 and 0 otherwise. a) What is the probability that X > 1? b) What is the probability that X < 1? c) What is the probability that 2.1 < X < 2.7? d) What is the expected value of X (E(X))?
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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The error, X, in measuring the length of a rivet (in micrometers) has the following
f(x)=
20·x·(3−x)3 |
243 |
for
0 ≤ x ≤ 3
and 0 otherwise.
a) What is the probability that X > 1?
b) What is the probability that X < 1?
c) What is the probability that 2.1 < X < 2.7?
d) What is the
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