The p.d.f. of a random variable X is f(x) = 2x for 0 x l.
Question:
Find the probability that the random variable has a value less than one standard deviation below the expectation and less than two standard deviations below the expectation. How do the results compare with the rules of thumb for a bell-shaped distribution?
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We have that EX 23 0667 and 0236 Then one standard deviation below the mean ...View the full answer
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Related Book For 
Modeling the Dynamics of Life Calculus and Probability for Life Scientists
ISBN: 978-0840064189
3rd edition
Authors: Frederick R. Adler
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