Question
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 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? | ||
|
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 | |
|
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