In an elementary school, 25% of children wear glasses. Suppose that a random sample of 64 children is selected. Find the mean number of children in the sample who wear glasses. Round your answer to the nearest integer.

To find the mean number of children in the sample who wear glasses, we need to multiply the percentage of children who wear glasses by the sample size.

Given that 25% of children wear glasses, we can convert this into decimal form by dividing by 100: 25% = 0.25

Multiplying the decimal by the sample size of 64 children, we get:

0.25 * 64 = 16

Therefore, the mean number of children in the sample who wear glasses is 16.

To find the mean number of children in the sample who wear glasses, we need to multiply the total number of children in the sample by the percentage who wear glasses.

The total number of children in the sample is 64.

The percentage of children who wear glasses is 25%.

To find the mean, we multiply the total number of children in the sample by the percentage who wear glasses:

Mean = Total number of children in the sample * Percentage who wear glasses

Mean = 64 * 0.25

Mean ≈ 16

So, the mean number of children in the sample who wear glasses is approximately 16.

mean = np

n = sample size = 64
p = .25

I'll let you take it from here.