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 in the set.

Front

What is 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 often 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 mean of 9, 9, 18?

Back

Add the numbers: 9 + 9 + 18 = 36. Then divide by the number of items: 36 ÷ 3 = 12.

Front

What is the mode of 3, 3, 4, 6, 9?

Back

The mode is 3, as it appears most frequently.

Front

How do you find the range of 155, 165, 138, 172, 127, 193, 142?

Back

Subtract the smallest score (127) from the largest score (193): 193 - 127 = 66.

Front

What is the median of 1, 3, 3, 6, 7, 8, 9?

Back

The median is 6, as it is the middle number in the sorted list.

Front

What is the median of 1, 2, 3, 4, 5, 6?

Back

The median is (3 + 4) ÷ 2 = 3.5, as there are two middle numbers.

Front

If the scores are 10, 20, 30, 40, what is the range?

Back

The range is 40 - 10 = 30.