How Do You Find the Mean of the Data Set?

You find the mean of a data set by adding up all the numbers in the set and then dividing by the total number of values in the set.

Here's a breakdown of the process:

1. Sum the Data: Add all the individual numbers together. This gives you the total sum of all the values.

2. Count the Values: Determine how many numbers are in the data set. This is the size or number of values in the dataset.

3. Divide the Sum by the Count: Divide the sum you calculated in step 1 by the number of values you counted in step 2. The result is the mean (average) of the data set.

Formula:

Mean = (Sum of all values) / (Number of values)

Example:

Let's say your data set is: 2, 4, 6, 8, 10

1. Sum: 2 + 4 + 6 + 8 + 10 = 30

2. Count: There are 5 numbers in the data set.

3. Divide: 30 / 5 = 6

Therefore, the mean of the data set 2, 4, 6, 8, 10 is 6.