f(1) -A exp (- bt) means t (t) = Aebt The probability density funotion for the random variable Tis Fi) = kt exp ( -kt?) for t>0 where k > 0. E(T) = Select one: a. % (k/ m) b. 1/4 (T/k)/2 o. (T/k)2 d. 4 (T/k)1/2
f(1) -A exp (- bt) means t (t) = Aebt The probability density funotion for the random variable Tis Fi) = kt exp ( -kt?) for t>0 where k > 0. E(T) = Select one: a. % (k/ m) b. 1/4 (T/k)/2 o. (T/k)2 d. 4 (T/k)1/2
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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Transcribed Image Text:f(t) = A exp ( - bt) means f (t) = Ae-bt
The probability density function for the random variable T is
f[t) = kt exp (-k2)
for t>0 where k >0. E(T) =
Select one:
a. % [k/ T)
b. 1/4 (T/k)/2
c. (T/k)/2
d. % (T/k)1/2
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