1 Answer

Cole Stanfield · Answer 1 · 2021-03-12T16:24:27+0000

Option C: np is the expression used for calculating the mean of a binomial distribution.

Step-by-step explanation:

From the options, we need to determine the expression that is used for calculating the mean of a binomial distribution.

Option A: npq

The variance of the binomial distribution can be calculated using the expression npq.

Hence, Option A is not the correct answer.

Option B:
√(npq)

The standard deviation of the binomial distribution can be calculated using the expression
√(npq)

Hence, Option B is not the correct answer.

Option C: np

The mean of the binomial distribution can be calculated using the expression np

Hence, Option C is the correct answer.

Option D:
$\sum\left[x^(2) \cdot P(x)\right]-\mu^(2)$

The mean of the binomial distribution cannot be determined using the expression
$\sum\left[x^(2) \cdot P(x)\right]-\mu^(2)$

Hence, Option D is not the correct answer.

Please log in or register to add a comment.