Mean, Median, Mode & Range

Front

What is the definition of mode in a data set?

Back

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

Front

How do you calculate the mean of a set of numbers?

Back

To calculate the mean, add all the numbers together and then divide by the total count of numbers.

Front

What is the definition of median in a data set?

Back

The median is the middle value when a data set is ordered from least to greatest. If there is an even number of values, the median is the average of the two middle numbers.

Front

How do you find the range of a set of numbers?

Back

The range is found by subtracting the smallest number in the set from the largest number.

Front

What is the mean of the following numbers: 5, 11, 2, 12, 4, 2?

Back

The mean is 6.

Front

If Joe scored 85, Jill scored 89, and Bill scored 99, what is their average score?

Back

The average score is 91.

Front

What is the mode of the following set of numbers: 3, 7, 7, 2, 5?

Back

The mode is 7.

Front

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

Back

First, order the numbers: 1, 2, 3, 4. The median is the average of 2 and 3, which is 2.5.

Front

What is the range of Lizzy's test scores: 72, 94, 108, 60?

Back

The range is 48.

Front

What does it mean if a data set has no mode?

Back

It means that no number appears more than once in the data set.