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 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 can 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 Median in an odd set of numbers?

Back

Arrange the numbers in order and select the middle number.

Front

How do you find the Median in an even set of numbers?

Back

Arrange the numbers in order and calculate the average of the two middle numbers.

Front

Can a data set have more than one mode?

Back

Yes, a data set can have multiple modes if multiple numbers appear with the same highest frequency.

Front

Can a data set have more than one median?

Back

No, a data set can only have one median.

Front

What is the mode of the data set: 6, 5, 5, 9, 8, 7, 9?

Back

The modes are 5 and 9.

Front

What is the range of the data set: 10, 15, 20, 25?

Back

The range is 25 - 10 = 15.