How do me find the mean of the data sets

To find the mean of a data set you have add all the values together and divide by the number of values in the set. The result is your mean

Step-by-step explanation:

Such as finding the mean of 1, 2, 4, 7, 9 as an example

Adding those numbers together you get 23. You then divide 23 by 5, given that there are 5 values above. 23/5 is 4.6. The mean would be 4.6