1 of 20 A random variable is a numerical value representing the outcome of a probability experiment. True False 2 of 20 A fair coin is flipped twice to see how many heads appear. The random variable is O {HH, HT, TH, TT} O 0.5 the number of heads observed 3 of 20 A random variable is any random value between 0 and 1 a variable whose possible values are outcomes of a random process a probability experiment O an undefined numerical value