Thirty-nine randomly selected students in a college took the stat final. The sample mean was 68.9 with standard deviation 8.3 . The 99% confidence interval estimate of the population mean is:

Rosy waxes 2/3 of her car with 1/4 bottle of car wax.at this rate,what fraction of the bottle of car wax will rosey use to wax her entire car

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

David estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x. create a question you could ask that could be answered only by graphing or using a logarithm.