An electronics store has received a shipment of20table radios that have connections for an iPod or iPhone.Tenof these have two slots (so they can accommodate both devices), and the othertenhave a single slot. Suppose thateightof the20radios are randomly selected to be stored under a shelf where the radios are displayed, and the remaining ones are placed in a storeroom. LetX= thenumber among the radios stored under the display shelf that have two slots.

(b) ComputeP(X= 2),P(X2), andP(X2).

(Round your answers to four decimal places.)

(c) Calculate the mean value and standard deviation ofX. (Round your standard deviation to two decimal places.)