Question

About 7% of the population has a particular genetic mutation. 400 people are randomly selected. Round your answer to three decimal places. Find the mean for the number of people with the genetic mutation in such groups of 400.

Answer 1

To find the mean for the number of people with the genetic mutation in groups of 400, we can multiply the total population (400) by the percentage of the population with the mutation (7%).

Mean = Total population * Percentage

Mean = 400 * 0.07

Mean ≈ 28

Therefore, the mean for the number of people with the genetic mutation in groups of 400 is approximately 28.

Explanation:

Let's break it down step by step:

1. We have the total population of 400 people randomly selected.

2. The percentage of the population with the genetic mutation is 7%.

3. To find the mean, we multiply the total population (400) by the percentage (0.07).

4. Mean = 400 * 0.07.

5. Calculating the multiplication, we find that the mean is approximately 28.

So, the mean for the number of people with the genetic mutation in groups of 400 is approximately 28.