Sound City sells the ClearTone-400 satellite car radio. For this radio, historical sales records over the last 100 weeks show 2 weeks with no radios sold, 18 weeks with one radio sold, 18 weeks with two radios sold, 46 weeks with three radios sold, 9 weeks with four radios sold, and 7 weeks with five radios sold. Calculate _x, _x², and _x, of x,the number of ClearTone-400 radios sold at Sound City during a week using the estimated probability distribution. (Round your answers to 2 decimal places.)