Mean, Median, and Mode

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 values 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 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. A set of numbers may have one mode, more than one mode, or no mode at all.

Front

How do you find the mean of a data set?

Back

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

Front

How do you find the median of a data set?

Back

To find the median, arrange the numbers in order from least to greatest and identify the middle number.

Front

How do you find the mode of a data set?

Back

To find the mode, identify the number that occurs most frequently in the data set.

Front

What is the mean of the following data set: 23, 26, 25, 24, 23, 24, 6, 24, 23?

Back

The mean is $22.

Front

What is the median of the following data set: 4, 6, 9, 11, 8, 13, 12?

Back

The median is 9.

Front

What is the mode of the following data set: 4, 5, 4, 3, 5, 1, 6?

Back

The mode is 4 and 5.

Front

If a data set has no repeating numbers, what can you say about its mode?

Back

The mode is none, as there are no numbers that appear more than once.