For samples of the specified size from the population described, find the mean and standard deviation of the sample mean . The mean and the standard deviation of the sampled population are, respectively, 83.6 and 5.5 . n = 256

Ageologist had two rocks on a scale that weighed 4.6 kilograms together. rock a was 0.5 of the total weight. how much did rock a weigh?

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?