# Question

Find the mean and standard deviation for each binomial random variable:

a. n = 30, π = .90

b. n = 80, π = .70

c. n = 20, π = .80

a. n = 30, π = .90

b. n = 80, π = .70

c. n = 20, π = .80

## Answer to relevant Questions

Calculate each binomial probability: a. X = 5, n = 9, π = .90 b. X = 0, n = 6, π = .20 c. X = 9, n = 9, π = .80 Calculate each binomial probability: a. More than 10 successes in 16 trials with an 80 percent chance of success. b. At least 4 successes in 8 trials with a 40 percent chance of success. c. No more than 2 successes in 6 ...Police records in the town of Saratoga show that 15 percent of the drivers stopped for speeding have invalid licenses. If 12 drivers are stopped for speeding, find the probability that (a) None will have an invalid ...Calculate each Poisson probability: a. More than 10 arrivals with λ = 8.0. b. No more than 5 arrivals with λ = 4.0. c. At least 2 arrivals with λ = 5.0 Three percent of the letters placed in a certain postal drop box have incorrect postage. Suppose 200 letters are mailed. (a) For this binomial, what is the expected number with incorrect postage? (b) For this binomial, what ...Post your question

0