1.You take a sample of rents of 182 apartments in San Francisco and find that the mean rent is $3000 per month and the standard deviation is $500 per month.According to Chebyshev's Theorem, what percentage of the rents in your sample fall between $1500 and $4500 per month?

A.Exactly 95.44%

B.At least 89%

C.We can't tell from the information given.

D.Less than 75%

E.No more than 50%

2.The number of customers at your company's store on a given day has a bell-shaped normal distribution with a mean of 40 and a standard deviation of 5.What percentage of days do you expect to have between 35 and 45 customers?Give your answer as a percent and show necessary steps.

3.The number of apples sold at your store on a given day has a bell-shaped normal distribution with a mode of 200 apples and a variance of 100 squared apples.What percentage of days do you expect to sell between 190 and 220 apples?Give your answer as a percent and show steps.

Last month, a random sample was taken of the residents of Petland. The results are shown in the table below. Petland is a small country with a population of 5732 people and only two zip codes: 501 for the North and 802 for the South. You may use this spreadsheet to do your work but you do not need to submit the spreadsheet and it will not be graded. It is only provided for your convenience in calculating your answers. Person Zip Code Age Number of Cats Anna 501 25 0 Billy 802 41 6 Carmen 802 55 4 Deng 501 60 2 Erica 501 35 3 Fernando 501 39 3 Greta 802 25 2 Hector 802 25 O Inez 802 100 7 Jia-Wei 802 65 3