Given that pqrs is a square, find x and y.

a. x = 10, y = 10
b. x = 28, y = 47
c. x = 47, y = 28
d. not enough information

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

Determine the mean and variance of the random variable with the following probability mass function. f(x)=( 729divided by 91) (1 divided by 9) superscript x baseline comma x equals 1,2,3 round your answers to three decimal places (e.g. 98.765).

Adriveway is 40 yards long about how many meters long is it