Mean (Average)

Front

What is the mean (average)?

Back

The mean (average) is the sum of all numbers in a set divided by the count of numbers in that set.

Front

How do you calculate the mean of a set of numbers?

Back

To calculate the mean, add all the numbers together and then divide by how many numbers there are.

Front

Find the mean of these numbers: 5, 8, 12, 6, 7, 10, 14, 6, 13.

Back

9

Front

Find the mean of these numbers: 1, 8, 7, 5, 6, 4, 7, 6.

Back

5.5

Front

Find the mean of these numbers: 2, 8, 6, 3, 12, 7, 4.

Back

6

Front

What does it mean if a student scores above the mean?

Back

It means the student scored higher than the average score of the group.

Front

If the mean score of a test is 75%, how many students scored above the mean if the scores are: 70%, 80%, 90%, 60%, 75%?

Back

3 students scored above the mean.

Front

Is this a statistical question: Typically, how many emails do you send each day?

Back

Yes, it is a statistical question.

Front

What is the importance of finding the mean in a data set?

Back

Finding the mean helps to understand the overall performance or trend in the data.

Front

What is the mean of the following scores: 34%, 44%, 75%, 21%, 98%, 86%, 71%, 76%, 63%, 55%?

Back

The mean is 63.9%.