The Downtown Parking Authority of Tampa, Florida, reported the following information for a sample of 250 customers on the number of hours cars are parked and the amount they are charged.
|Number of Hours||Frequency||Amount Charged|
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a-1. Convert the information on the number of hours parked to a probability distribution. (Round your answers to 3 decimal places.)
a-2. Is this a discrete or a continuous probability distribution?
b-1. Find the mean and the standard deviation of the number of hours parked.
b-2. How long is a typical customer parked? (Round your answer to 3 decimal places.)
Find the mean and the standard deviation of the amount charged. (Round your answers to 2 decimal places.)
Sample size (n) = 250
The number of hours cars are parked and the amount they are charged is:
Number of Hours
Let x is a random variable of hours car are parked.
The probability formula for each frequency is:
Here, N is population size and f is frequency.
Convert the information on the number of hou...
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