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 count of numbers.

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

What is the mode?

Back

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

Front

What is the range?

Back

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

Front

How do you find the mean of the numbers 10, 20, 30?

Back

Add the numbers: 10 + 20 + 30 = 60. Then divide by the count of numbers: 60 / 3 = 20.

Front

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

Back

First, sort the numbers: 1, 2, 3, 4. The median is the average of the two middle numbers: (2 + 3) / 2 = 2.5.

Front

What is an outlier?

Back

An outlier is a number that is significantly different from the other numbers in a data set.

Front

Find the mode of the numbers 5, 6, 6, 7, 8.

Back

The mode is 6, as it appears most frequently.

Front

Find the range of the numbers 15, 22, 8, 30.

Back

Range = Largest number - Smallest number = 30 - 8 = 22.

Front

What is the median of the numbers 10, 20, 30, 40, 50?

Back

The median is 30, as it is the middle number in the sorted list.