Find the sum of this problem:

.65 + 3.021 =

Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

Which graph corresponds to the function f(x) = x2 + 4x – 1?

If square root x = -7, then x= -49 true or false