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The density function of a random variable X is given by f(x)= 1/(7√2π) e^(-?(x+3.6)?^2/98)   Find its (a) math expectation (b) variance and (c) distribution funct...

The distribution of the width of a standard piece of computer paper is normal with an expectation of 8.5 inches and the standard deviation of 0.2 inch.   a) Find the probability that...

 Find E (x),Var(x) , Ó(x)  if a random variable X is given by its density function f(x) , such that  f(x)=0, if x≤0 f(x)=3/8 x^2, if 0<x≤2 f(x)=0, if x>...

Which statement is true? A line parallel to the x-axis has neither slope nor y-intercept defined. A line parallel to the y-axis has neither slope nor y-intercept defined. A line parallel...

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