1. There are only 7 black buttons, 5 yellow buttons and 6 green buttons in a bag. One buttons is taken at random from the bag.

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

Consider the diagram. which line segment has the same measure as st? rx tx sr xs

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.