Mean Median Mode Range

Front

What is the mean of a data set?

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

What is the median of a data set?

Back

The median is the middle value when the numbers are arranged in order. If there is an even number of values, the median is the average of the two middle numbers.

Front

What is the mode of a data set?

Back

The mode is the number that appears most frequently in a data set. A set may have one mode, more than one mode, or no mode at all.

Front

What is the range of a data set?

Back

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

Front

How do you find the mean of the numbers 4, 8, 6, 5?

Back

Add the numbers: 4 + 8 + 6 + 5 = 23. Then divide by the count of numbers: 23 ÷ 4 = 5.75.

Front

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

Back

First, arrange the numbers in order: 1, 2, 3, 4. Since there are 4 numbers (even), the median is the average of the two middle numbers: (2 + 3) ÷ 2 = 2.5.

Front

How do you find the mode of the numbers 2, 3, 2, 5, 3, 3?

Back

The mode is 3, as it appears most frequently (three times) in the data set.

Front

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

Back

The highest number is 20 and the lowest is 5. The range is 20 - 5 = 15.

Front

What is an example of a data set with no mode?

Back

A data set like 1, 2, 3, 4 has no mode because no number repeats.

Front

What is an example of a data set with two modes?

Back

A data set like 1, 2, 2, 3, 3 has two modes: 2 and 3.