Question

About 1% of the population has a particular genetic mutation. 200 people are randomly selected.

Find the mean for the number of people with the genetic mutation in such groups of 200. (Round to 2 decimal places if possible.)

Answer 1

The values provided in the above question are as below.

The probability p is given in the question as 1% = 0.01

The sample size n is given in the question as 200 = 200

We have to find the mean for the number of people with the genetic mutation in such groups of 200 using following formula.

Mean =

Using above values we get

Mean = =

Mean = =

Summary : -

The mean for the number of people with the genetic mutation in such groups of 200 is 2.

That is, Mean = =