Answer Happy

A random variable is a real-valued function whose domain is the sample space of a random experiment and its range is real numbers. Select one: True False

A continuous random variable often involves a count of something, for example number of children in a household Select one: True False

For a random variable X with variance Var(X), the standard deviation of (x) is the square root of the Var(X) Ox=var(x) Select one: True False

A permutation is an ordered arrangement of the elements of some set S For example if S = {a,b,c) (cb, a) is a permutation of S (b, c, a) is a another permutation of S Select one: True False