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 232 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.)

References

eBook & Resources

Number of Hours Frequency Amount Charged 1 16 $ 4 2 36 7 3 52 12 4 43 15 5 34 20 6 16 24 7 7 27 8 28 30    232   

Explanation / Answer

a2)

discrete

mean = 4.116

standard deviation = sqrt ( 21.02155172 - 4.11637931^2)

=2.019

typical customer is parked for 2.019

Number of Hours Frequency Amount Charged 1 16 $ 4 2 36 7 3 52 12 4 43 15 5 34 20 6 16 24 7 7 27 8 28 30 232 number of hours probability x*p(x) x^2* p(x) 1 0.069 0.06896551724 0.06896551724 2 0.155 0.3103448276 0.6206896552 3 0.224 0.6724137931 2.017241379 4 0.185 0.7413793103 2.965517241 5 0.147 0.7327586207 3.663793103 6 0.069 0.4137931034 2.482758621 7 0.030 0.2112068966 1.478448276 8 0.121 0.9655172414 7.724137931 4.11637931 21.02155172

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