What are the mode, median, and mean of {15, 27, 29, 13, 18, 19, 15, 19, 19, 27, 15, 22, 13, 26, 20}?

1 Answer
Nov 22, 2015

Mode: 15 and 19
Median: 19
Mean: 19.8

Explanation:

The mode is the most commonly occurring data value;
in this case both 15 and 19 occur 3 times so they both represent modal values.

The median is the value which occurs in the middle of the data values when the data has been sorted (if there were an even number of data values, it would be the average of the 2 middle values).
In this case there are 15 data values so the middle (of the sorted data values) is the 8th entry.

The mean is the arithmetic average of all data values.

enter image source here