Which one of the following statements is false? If f(x)>0 and Es(x)=1 then f (x) is a probability mass function Geometric distribution is a discrete probability distribution If f(x) is probability density function then X is a discrete randa Possion distribution have a same mean and variance

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Q: please show step by step explanation. Thank you.

A: The formula of distribution function F(X) is,

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Q: fx) = {1-Ixl , Fx) = { |x] <1 , otherwis then what is the variance of X?

A: The variance of the random variable X is defined as Var(X)= E(X2)-(E(X))2  Where E(X) is called mean

Q: Help

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