Question

Identify the expression for calculating the mean of a binomial distribution

Answer 1

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.