Question: A probability density function f(x) for the continuous random variable X is denoted as _______
Options
A : ? f(x)dx = ?, -1<=x<=1
B : ? f(x)dx = 1, -?<=x<=?
C : ? f(x)dx = 0, -?<=x<=?
D : ? f(x+2)dx = .5, -?<=x<=?
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