The Downtown Parking Authority of Tampa, Florida, reported the following information for a sample of 238customers on the number of hours cars are parked and the amount they are charged.

Number of Hours	Frequency	Amount Charged
1		18		$	3
2		38			8
3		53			14
4		44			17
5		32			21
6		16			25
7		6			28
8		31			29
		238

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

Hours	Probability
1
2
3
4
5
6
7
8

a-2.	Is this a discrete or a continuous probability distribution?
	Discrete Continuous

b-1.	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.)

Mean
Standard deviation

b-2.	How long is a typical customer parked?(Do not round intermediate calculations. Round your final answers to 3 decimal places.)

The typical customer is parked for

hours

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

Mean
Standard deviation