9. Find the variance of the diameter of the electronic cable. a. 0.05 b. 0.3 с. 0.25

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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For numbers 6-9, the diameter of an electronic cable, say X is random, with pdf
fx(x) = 6x – 6x²I0,1](x²)
6. Which of the following is the CDF of X.
a. Fx(x) = (2a³ – 3x2)I[0,1)(x) + I1,00) (x)
b. Fx(x)= (3x² – 2a³)I(0,1)(x) + I1,00) (x)
c. Fx(x) = (2x² – 3r³)I0,1)(x') + I1,00) (x)
7. Find P(X > 0.75).
a. 0.3750
b. 0.1653
c. 0.1569
8. Find the mean diameter of the electronic cable.
а. 0.5
b. 0.25
c. 0.125
9. Find the variance of the diameter of the electronic cable.
a. 0.05
b. 0.3
с. 0.25
Transcribed Image Text:For numbers 6-9, the diameter of an electronic cable, say X is random, with pdf fx(x) = 6x – 6x²I0,1](x²) 6. Which of the following is the CDF of X. a. Fx(x) = (2a³ – 3x2)I[0,1)(x) + I1,00) (x) b. Fx(x)= (3x² – 2a³)I(0,1)(x) + I1,00) (x) c. Fx(x) = (2x² – 3r³)I0,1)(x') + I1,00) (x) 7. Find P(X > 0.75). a. 0.3750 b. 0.1653 c. 0.1569 8. Find the mean diameter of the electronic cable. а. 0.5 b. 0.25 c. 0.125 9. Find the variance of the diameter of the electronic cable. a. 0.05 b. 0.3 с. 0.25
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