Mean Median Mode Range

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 total count of numbers.

Front

How do you calculate the mean of the numbers 4, 5, 5, 2, 3, 3, 2, 8?

Back

Add the numbers: 4 + 5 + 5 + 2 + 3 + 3 + 2 + 8 = 32. Then divide by the count of numbers (8): 32 ÷ 8 = 4.

Front

What is the median?

Back

The median is the middle number in a sorted list of numbers. If there are two middle numbers, add them together and divide by 2.

Front

How do you find the median of the numbers 3, 1, 4, 2?

Back

First, sort the numbers: 1, 2, 3, 4. The two middle numbers are 2 and 3. Add them: 2 + 3 = 5, then divide by 2: 5 ÷ 2 = 2.5.

Front

What is the mode?

Back

The mode is the number that appears most frequently in a set of numbers.

Front

What is the range?

Back

The range is the difference between the largest and smallest numbers in a set.

Front

How do you calculate the range of the numbers 10, 15, 5, 20?

Back

Identify the largest number (20) and the smallest number (5). Then subtract: 20 - 5 = 15.

Front

What is the formula for calculating the mean?

Back

Mean = (Sum of all values) ÷ (Number of values).

Front

If the scores are 72, 94, 108, 60, what is the range?

Back

Range = Largest score (108) - Smallest score (60) = 108 - 60 = 48.

Front

What do you do if there are two middle numbers when finding the median?

Back

Add them together and divide by 2.