Mean, Median, Mode, and 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 12, 5, 9, 18, 22, 25, 5?

Back

Add all the numbers: 12 + 5 + 9 + 18 + 22 + 25 + 5 = 96. Then divide by the number of values (7): 96 / 7 = 13.71.

Front

How do you find the median of 12, 5, 9, 18, 22, 25, 5?

Back

First, sort the numbers: 5, 5, 9, 12, 18, 22, 25. The median is the middle number, which is 12.

Front

How do you find the mode of 12, 5, 9, 18, 22, 25, 5?

Back

The mode is 5, as it appears most frequently in the data set.

Front

How do you find the range of 12, 5, 9, 18, 22, 25, 5?

Back

The largest number is 25 and the smallest is 5. The range is 25 - 5 = 20.

Front

What is the formula for calculating the mean?

Back

Mean = (Sum of all values) / (Number of values)

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.