Find the mean, median, and modes of the data set: 91, 93, 89, 97, 89, 98, 94, 93
Mean:
Add up all the numbers and divide by the total number of numbers:
(91 + 93 + 89 + 97 + 89 + 98 + 94 + 93) ÷ 8 = 92
The mean is 92.
Median:
Arrange the numbers in order from smallest to largest:
89, 89, 91, 93, 93, 94, 97, 98
There are 8 numbers, so the median is the average of the two middle numbers:
(93 + 94) ÷ 2 = 93.5
The median is 93.5.
Mode:
The mode is the number(s) that appear the most frequently in the data set.
In this case, both 89 and 93 appear twice, so the modes are 89 and 93.