Problem 5 The random variable X, which denotes the interval between two consecutive events, has the PDF: fx(x) = 4x²e-2x x≥0 If we assume that intervals between events are independent, determine the following: (a) The expected value of X. (b) The expected value of the interval between the 11th and 13th events (c) The probability that X ≤ 6.

A First Course in Probability (10th Edition)
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Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Problem 5
The random variable X, which denotes the interval between two consecutive events, has the PDF:
fx(x) = 4x²e-2x x ≥ 0
If we assume that intervals between events are independent, determine the following:
(a) The expected value of X.
(b) The expected value of the interval between the 11th and 13th events
(c) The probability that X ≤ 6.
Transcribed Image Text:Problem 5 The random variable X, which denotes the interval between two consecutive events, has the PDF: fx(x) = 4x²e-2x x ≥ 0 If we assume that intervals between events are independent, determine the following: (a) The expected value of X. (b) The expected value of the interval between the 11th and 13th events (c) The probability that X ≤ 6.
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