3. Let X be a random variable with density function Scr-, if a 2 1, S(2) = otherwise. a) Find c. b) Find P(3 < X < 6). c) What is P(X = 3)?
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Let X be a random variable with density
f(x) = cx−3, if x ≥ 1,
0 otherwise.
a) Find c.
b) Find P (3 < X ≤ 6).
c) What is P(X = 3)?
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