. A population consists of 500 values having mean 50 and variance 5. Find mean and standard error of sampling distribution of means for sample size equal to 20 if sampling is done (i) Without replacement
(ii) With Replacement

The clayton family’s pool has vertices at the coordinates (0, 2), (0, 5), (2, 5), (2, 6), (5, 6), (5, 1), (2, 1), and (2, 2). if each grid square has an area of 9 square feet, what is the area of the pool?

Ariel is working at a meat packing plant for 5 nights a week. her regular wage is $11 an hour. she earns tine and a half for any overtime hours. this week she worked 9 hours of over time .how much will ariel earn for overtime this week ?

The holiday party will cost $160 if 8 people attend. if there are 40 people who attend the party, how much will the holiday party cost