One of the ideas that you have explored in previous courses is how to describe a set of data. One of the ways that you may have seen before is finding an average (also called a mean). Read the Math Notes box for this lesson to review what a mean is and how to find it. Then find the mean for each set of data below. Homework Help ✎
Jane’s quiz scores:
, , , ,
To find the average (mean), add all the values together and divide by the total number of values.
Divide this total by the number of data values, in this case
The number of cats your teammates have as pets:
, , ,
To find the average, calculate
The number of minutes Pam talked on the phone:
, , , , ,
Look at the strategies in parts (a) and (b).