Sound City sells the ClearTone-400 satellite car radio. For this radio, historic

Question

Sound City sells the ClearTone-400 satellite car radio. For this radio, historical sales records over the last 100 weeks show 4 weeks with no radios sold, 29 weeks with one radio sold, 33 weeks with two radios sold, 21 weeks with three radios sold, 7 weeks with four radios sold, and 6 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.)

Explanation / Answer

X Frequency x*f/100 (x - Mean)^2 * f/100 0 4 0 0.186624 1 29 0.29 0.390224 2 33 0.66 0.008448 3 21 0.63 0.148176 4 7 0.28 0.236992 5 6 0.3 0.483936 Total 100 2.16 1.4544 Mean 2.16 Variance 1.4544 Std. Dev. 1.205985

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