a. Probability that there is at least one imperfection in a roll of 10-m synthetic fabric is? b. a. Probability that there is at most two imperfections in a roll of 10-m synthetic fabric is? c. The expected number of imperfections per roll of 10-m synthetic fabric?
a. Probability that there is at least one imperfection in a roll of 10-m synthetic fabric is? b. a. Probability that there is at most two imperfections in a roll of 10-m synthetic fabric is? c. The expected number of imperfections per roll of 10-m synthetic fabric?
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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a. Probability that there is at least one imperfection in a roll of 10-m synthetic fabric is?
b. a. Probability that there is at most two imperfections in a roll of 10-m synthetic fabric is?
c. The expected number of imperfections per roll of 10-m synthetic fabric?
d. What is E(X^2)?
e. What is the variance of X?
Transcribed Image Text:3.13 The probability distribution of X, the number
of imperfections per 10 meters of a synthetic fabric in
continuous rolls of uniform width, is given by
x
0
1
2
3
4
f(x)
0.41
0.37
0.16
0.05
0.01
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