Find the cumulative distribution function for the given probability density function.f(x) = 
x2; [2, 4]
A. F(x) = 
, 2 ? x ? 4
B. F(x) = 
, 2 ? x ? 4
C. F(x) = 
, 2 ? x ? 4
D. F(x) = 
, 2 ? x ? 4
Answer: B
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