Mean, Median, Mode, Range & Graphs

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.

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What is the median?

Back

The median is the middle value in a data set 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?

Back

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

Front

What is the range?

Back

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

Front

How do you find the mean of a data set?

Back

To find the mean, add all the numbers in the data set together and then divide by the number of values.

Front

How do you find the median of a data set?

Back

To find the median, first arrange the numbers in order. If there is an odd number of values, the median is the middle number. If even, average the two middle numbers.

Front

How do you find the mode of a data set?

Back

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

Front

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

Back

If a data set has no mode, it means that no number appears more than once.

Front

What is an example of finding the mean?

Back

For the data set 2, 4, 6, the mean is (2+4+6)/3 = 4.

Front

What is an example of finding the median?

Back

For the data set 3, 1, 2, the median is 2 when arranged in order (1, 2, 3).