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 number of items.

Front

How do you calculate the mean?

Back

Add all the numbers together and divide by the number of items.

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 items, the median is the average of the two middle numbers.

Front

How do you find the median in a set of numbers?

Back

Sort the numbers in order and find the middle value.

Front

What is the mode?

Back

The mode is the number that occurs most frequently in a data set.

Front

How do you find the mode?

Back

Identify the number that appears most often in the data set.

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 calculate the range?

Back

Subtract the smallest number from the largest number in the data set.

Front

What is an example of calculating the mean?

Back

For the data set 1, 2, 3, 4, 5, the mean is (1+2+3+4+5)/5 = 3.

Front

What is an example of finding the median?

Back

For the data set 60, 58, 52, 48, 60, 67, the sorted list is 48, 52, 58, 60, 60, 67. The median is (58+60)/2 = 59.