Question

The results of inspection of DNA samples taken over the past 10 days are given below. Sample size is 100.

Day 1 2 3 4 5 6 7 8 9 10
Defectives 7 6 6 9 5 6 0 8 9 1

What is the average defective rate for these samples?

Answer 1

The average defective rate = .057

Explanation:

Given -

Sample size n = 100

Day - 1 2 3 4 5 6 7 8 9 10

Defectives - 7 6 6 9 5 6 0 8 9 1

The average defective rate is the no of defective in each day for past ten days

The average defective rate =
`(\sum no\; of \; effective \; in\; each\; day)/(no\; of \; day * n)`

=
`(7 + 6 + 6 + 9 + 5 + 6 + 0 + 8 + 9 + 1)/(10* 100)`

=
`(57)/(1000)`

= .057