What is the t* value for a 95% confidence interval with a sample size of 20? *

Find the domain and range of the following function f(x) = 51x - 21+ 4

Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?

The table below shows the number of free throw shots attempted and the number of shots made for the five starting players on the basketball team during practice. each player's goal is to make 80% of her shots.