Calculate the mean and standard deviatio of he amount of revenue each car generates. When parking a car in a downtown parking lot, drivers pay according tothe number of hours or parts thereof. The probability distribution of the number of hours cars are parked has been estimated as follows. x 1 2 3 4 5 6 7 8 p(x) .24 .18 .13 .10 .07 .04 .04 .20   The cost of parking is $2.50 per hour.

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The probability distribution of the number of hours cars are parked has been estimated as follows.

x      1      2     3     4     5     6     7     8

p(x) .24  .18  .13   .10  .07  .04  .04  .20

The mean is equal to:

1*0.24 + 2*0.18 + 3*0.13 + 4*0.1 + 5*0.07 +...

(The entire section contains 87 words.)

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