A continuous random variable X has probability density function fx(x) given by fx(x) = k (2-x)(x - 5), 2≤x≤5, = 0, elsewhere. Find the value of k, and hence deduce the mean and variance of X. What are the values of the mode and median of the distribution of X?

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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A continuous random variable X has probability density function fx(x) given by
fx(x) = k (2-x)(x - 5),
2≤x≤5,
= 0,
elsewhere.
Find the value of k, and hence deduce the mean and variance of X. What are the values of the
mode and median of the distribution of X?
Transcribed Image Text:A continuous random variable X has probability density function fx(x) given by fx(x) = k (2-x)(x - 5), 2≤x≤5, = 0, elsewhere. Find the value of k, and hence deduce the mean and variance of X. What are the values of the mode and median of the distribution of X?
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ISBN:
9780321964038
Author:
GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
Pearson Addison Wesley,