: A car dealer sells 5 different models of Audi. A company buys 10 cars its employees. How many ways can the cars be chosen? Question 12: Your company makes lamps. 96% pass final inspection (and 4%...

: A car dealer sells 5 different models of Audi. A company buys 10 cars its employees. How many ways can the cars be chosen?

Question 12: Your company makes lamps. 96% pass final inspection (and 4% fail and need to be fixed).

1. a) If we take a sample of 20lamps, which is the probability that 19 pass the inspection?


2. b) What is the sample mean?


3. c) What is the sample standard deviation?