Problema Solution
A company that manufactures computer chips wants to determine how many defective chips are in ten batches to be shipped. A quality control team samples 250 chips from each batch of 1000 and finds the following defective chips per batch: 40, 18, 4, 1, 23, 13, 29, 38, 40, 40. Find the median number of defective chips.
Answer provided by our tutors
To find the median number we need to:
- Put all the numbers in numerical order.
- If there is an odd number of results, the median is the middle number.
- If there is an even number of results, the median will be the mean of the two central numbers.
The numerical order is:
1, 4, 13, 18, 23, 29, 38, 40, 40, 40
The median is the mean of 23 and 29:
(23 + 29)/2 = 26
The median number is 26.