Question: A continuous variable X has density function f (x) = 3x2, 0 x b. The value of b is (a) 1 (b) 13

A continuous variable X has density function f (x) = 3x2, 0 ≤ x ≤ b.

The value of b is

(a) 1

(b) 1∕3

(c) 3 (d)3 √

3

(e) 3 √

2

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