Question

Mrs. Smith gave two classes the same quiz. She randomly selected 5 students from each class to compare the classes. The scores of the five students are shown below.
Class A: 80, 82, 74, 92, 94
Class B: 82, 80, 88, 86, 82
What are the mean and range for each class?

Answer 1

Class A: Mean- 422/5= 84.4. Range: 94-74=20

Class B: Mean- 418/5= 83.6. Range: 88-80 = 8

Answer 2

The mean and range for class A are 84.4 and 20 while the mean and range for class B are 83.6 and 8.

How to calculate the mean?

It should be noted that mean simply means average. It's the addition of the numbers divided by the total numbers.

In this case, the computation will be:

Class A: Mean = 422/5= 84.4.

Range: 94-74 = 20

Class B: Mean = 418/5 = 83.6.

Range= 88-80 = 8

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