Square the binomial (p + q). What is the result?

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

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

How many 3/8s are in 6 plz someone tell me now