?(?>0.2)= The random variable X has densityfx (x) = ax² + b_for 0 < x < 1 (and equal to 0otherwise), where a and b are positive constants. Also,the expected value of X is E (X) = ?.Use this information to determine a and b.Then P (X > 0.2) =

Here use rule of total probability always equal to 1

Answered: Use this information to determine a and…

A First Course in Probability (10th Edition)

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Chapter1: Combinatorial Analysis

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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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Use this information to determine a and b. Then P (X > 0.2) =