Mean: Average of the numbers in a set of data.
The mean of a data set is equal to the sum of the set of numbers divided by how many numbers are in the set. If we want to find the mean of the data set shown here, let's begin by adding the numbers.
35 + 40 + 45 + 50 + 55 + 60 + 65 = 350
Now, this will be divided by how many numbers are in the set which is 7.
350 ÷ 7 = 50.
Therefore, the mean of the set of data shown here is 29.2.
