Question

Please do all 3 problems

1. Find C(n, x)p^xq^{n − x}for the given values of n, x, and p. (Round your answer to four decimal places.)

n = 6, x = 5, p = 0.7

2.Let X be the number of successes in six independent trials of a binomial experiment in which the probability of success is p = 2/5. Find the following probabilities. (Round your answers to four decimal places.)

(a)

P(X = 5)

(b)    

P(2 ≤ X ≤ 5)

3. In a certain congressional district, it is known that 60% of the registered voters classify themselves as conservatives. If ten registered voters are selected at random from this district, what is the probability that four of them will be conservatives? (Round your answer to four decimal places.)

Answer 1