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 9, 8, 12, 6, 10?

Back

Add the numbers: 9 + 8 + 12 + 6 + 10 = 45. Then divide by 5 (the number of values): 45 ÷ 5 = 9.

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 values, the median is the average of the two middle numbers.

Front

How do you find the median of 5, 22, 81, 16, 15, 22?

Back

First, sort the numbers: 5, 15, 16, 22, 22, 81. There are 6 numbers, so the median is the average of the 3rd and 4th numbers: (16 + 22) ÷ 2 = 19.

Front

What is the mode?

Back

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

Front

What is the mode of 67, 74, 95, 98, 98, 99, 102?

Back

The mode is 98, as it appears twice, more than any other number.

Front

What is the range?

Back

The range is the difference between the highest and lowest values in a set of numbers.

Front

How do you calculate the range of 72, 94, 108, 60?

Back

Subtract the lowest number (60) from the highest number (108): 108 - 60 = 48.

Front

Find the median of 4, 2, 7, 4, 3.

Back

First, sort the numbers: 2, 3, 4, 4, 7. The median is the middle number, which is 4.

Front

What is the first step to find the mean?

Back

Add all the numbers together.