Question

1)For a binomial distributions, what is the value for the variance of X.

Group of answer choices

Var(X) = p(1-p)

Var(X) = p^2

Var(X) = np(1-p)

2) let X follow a binomial distribution with n = 15 and p = 0.32.

What is the probability of seeing 6 successes?

Group of answer choices

0.1670

0.8278

0.2130

3)

Let X follow a binomial distribution with n = 15 and p = 0.32.

What is the probability of seeing more than 9 successes?

Group of answer choices

0.0236

0.0062

0.9938

4)

Let X follow a binomial distribution with n = 15 and p = 0.32.

What is the probability of seeing at least 6 successes?

Group of answer choices

0.6607

0.1722

0.3393

Answer 1