# Statistics homework - 1.The Downtown Parking Authority of...

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1.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 HoursFrequencyAmount Charged120\$3.002386.003539.0044512.0054014.0061316.007518.0083620.00250 (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. (Round your answer to 2 decimal places.)
38.4(b-2) How long is a typical customer parked? (Round your answer to 2 decimal places.)
(c) Find the mean and the standard deviation of the amount charged. (Round your answer to 2 decimal places.)
7.202.It is reported that 16 percent of American households use a cell phone exclusively for their telephone service. In a sample of eight households, find the probability that:(a)None use a cell phone as their exclusive service. (Round your answer to 4 decimal places.)(b)At least one uses the cell exclusively. (Round your answer to 4 decimal places.)(c)At least five use the cell phone. (Round your answer to 4 decimal places.)