Question

find the mean, median, and mode of the data set
15,16,21,23,25,25,25,39

Answer 1

Mean:
To find the mean, you add up all the values and divide by the total number of values.
Mean = (15 + 16 + 21 + 23 + 25 + 25 + 25 + 39) / 8 = 23.5

Median:
The median is the middle value of a data set. To find the median, you first need to put the values in order from least to greatest:
15, 16, 21, 23, 25, 25, 25, 39
The median is the middle number, or the average of the two middle numbers (if there is an even number of values). In this case, there are 8 values, so there is no exact middle value. Instead, we take the average of the two middle values:
(23 + 25) / 2 = 24

Mode:
The mode is the value(s) that appears most frequently in a data set. In this case, the value that appears most frequently is 25. Therefore, the mode is 25.