To calculate the mean, we have to add up all of the numbers and then divide by how many numbers there are. So we'll do the following:
5+10+12+4+6+11+13+5 then divide that by 8
The answer to the question is 8.25
The "average" number is found by adding all data points and dividing them by the number of data points.
The mean of 4, 1, and 7 is
( 4 + 1 + 7 ) / 3
= 12
Learn more about mean here: https://brainly.com/question/20118982
#SPJ2