finding the mean from numbers

Front

What is the mean?

Back

The mean is the average of a set of numbers, calculated by adding all the numbers together and dividing by the count of numbers.

Front

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

Back

1. Add all the numbers together. 2. Count how many numbers there are. 3. Divide the total by the count.

Front

Find the mean of: 9, 11, 2, 6

Back

7

Front

Find the mean of: 120, 120, 90, 70

Back

100

Front

Find the mean of: 3.8, 4.2, 4.0, 4.2, 4.2

Back

4.08

Front

Find the mean of: 5, 11, 2, 12, 4, 2

Back

6

Front

What is the formula for calculating the mean?

Back

Mean = (Sum of all values) / (Number of values)

Front

If the numbers are: 10, 20, 30, what is the mean?

Back

20

Front

What does it mean if the mean is higher than most of the numbers in the set?

Back

It indicates that there are some higher values that are pulling the average up.

Front

What is the mean of: 1, 2, 3, 4, 5?

Back

3