The mean of a data set is the sum of the values divided by the total number of values in the set. Let's start by calculating the sum of the given values.
11 + 0 + 10 + 3 + (-9) + 10 + 3 + (-2) +10
= 36There are 9 values in our set, so we have to divide the sum by 9.
Mean: 36/9=4
Median
When the data are arranged in numerical order, the median is the middle value — or the mean of the two middle values — in a set of data. Let's arrange the given values and find the median.
-9, -2, 0, 3, 3, 10, 10, 10, 11
The median of this set is 3.
Mode
The mode is the value or values that appear most often in a set of data.
Let's find the mode of the given values.
-9, -2, 0, 3, 3, 10, 10, 10, 11
The value that appears most often is 10.
Mode: 10
