Mean, Median, Mode and 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 number of items.

Front

How do you find the median?

Back

The median is the middle number in a sorted list of numbers. If there is an even number of items, the median is the average of the two middle numbers.

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 highest and lowest numbers in a set.

Front

How do you calculate the mean of 1, 2, 3?

Back

(1 + 2 + 3) / 3 = 2.

Front

What is the median of 3, 1, 2?

Back

First, sort the numbers: 1, 2, 3. The median is 2.

Front

What is the mode of 4, 4, 5, 6?

Back

The mode is 4, as it appears most frequently.

Front

What is the range of 10, 15, 20?

Back

Range = 20 - 10 = 10.

Front

If the numbers are 5, 10, 15, what is the mean?

Back

(5 + 10 + 15) / 3 = 10.

Front

What is the median of 7, 3, 9, 1?

Back

Sort the numbers: 1, 3, 7, 9. The median is (3 + 7) / 2 = 5.