What is the median number of the following numbers: 5, 8, 10, 11, 6, 8, 9, 15, 5, 8 out of a total of 10 people
To find the median number, we first need to arrange the numbers in order from smallest to largest:
5, 5, 6, 8, 8, 8, 9, 10, 11, 15
Since there are an even number of numbers (10), the median will be the average of the two middle numbers. In this case, the two middle numbers are 8 and 9.
Adding them together and dividing by 2:
(8 + 9) / 2 = 17 / 2 = 8.5
Therefore, the median number is 8.5.