Answer:
The sample range is 2.61.
Step-by-step explanation:
We are given the following grade-point averages which apply to a random sample of graduating seniors below;
3.81, 2.73, 2.51, 3.09, 3.28, 3.51, 2.86, 1.20, 3.13, and 3.24.
As we know that the range of the data is calculated bu using the following formula;
Range = Highest value in the data - Lowest value in the data
Here, Highest value = 3.81
Lowest value = 1.20
So, the sample data range = 3.81 - 1.20
= 2.61.
