The Downtown Parking Authority of Tampa, Florida, reported the following informa

Question

The Downtown Parking Authority of Tampa, Florida, reported the following information for a sample of 230 customers on the number of hours cars are parked and the amount they are charged.

Convert the information on the number of hours parked to a probability distribution. (Round your answers to 3 decimal places.)

Find the mean and the standard deviation of the number of hours parked. (Do not round intermediate calculations. Round your final answers to 3 decimal places.)

How long is a typical customer parked? (Do not round intermediate calculations. Round your final answers to 3 decimal places.)

Find the mean and the standard deviation of the amount charged. (Do not round intermediate calculations. Round your final answers to 3 decimal places.)

The Downtown Parking Authority of Tampa, Florida, reported the following information for a sample of 230 customers on the number of hours cars are parked and the amount they are charged.

Explanation / Answer

a)

a-2) discrete

b-1)

mean =4.187

std deviation =(21.848-4.1872)1/2 =2.078

b-2) 4

c)

mean =15.857

std deviation =8.403

Number of Hours Freq Probability =P(X)=freq/total freq 1 15 0.065 2 38 0.165 3 47 0.204 4 44 0.191 5 32 0.139 6 15 0.065 7 7 0.030 8 32 0.139 Total 230 1.000

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