If a distribution follows the binomial distribution with n = 40 and probability of success of 0.35, calculate the mean and variance

a. mean = 14, variance = 9.1
b. mean = 20, variance = 3.9
c. mean = 26, variance = 16.9
d. mean = 40, variance = 0.35

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels.ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0

What is the solution to the division problem below x3+x2-11x+4/x+4