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 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 mu_x. Sigma_x^2, and sigma_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 f fx fxx 0 2 0 0 1 18 18 18 2 18 36 72 3 46 138 414 4 9 36 144 5 7 35 175 15 100 263 823 mu 2.63 var 1.31 sigma 1.15

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