Question

The Downtown Parking Authority of Tampa, Florida, reported the following information for a sample of 236 customers 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			7
3		50			9
4		45			12
5		20			14
6		16			16
7		5			18
8		36			22
		258

a-1. Convert the information on the number of hours parked to a probability distribution. (Round your answers to 3 decimal places.)

Hours | Probability

Answer 1

From the table it doesn't look like there are 236 customers. I think that last row is missing

But i am 9th row has frequency of 8

Hours	Frequency
1	18
2	38
3	50
4	45
5	20
6	16
7	5
8	36
9	8

So, Total Customers = 236

Hence Probability distribution is founded by :

Pi = Fi / Total Customers

Where Pi = Probability of i^th hour

Fi = Frequency(Number) of Customers in ith hour

The table below gives probability distribution of hours:

Hours	Frequency	Probability
1	18	0.076
2	38	0.161
3	50	0.212
4	45	0.191
5	20	0.085
6	16	0.068
7	5	0.021
8	36	0.153
9	8	0.034