Mean, Median, Mode and Range

Front

What is the mean of a set of numbers?

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 in the set.

Front

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

Back

To find the median, arrange the numbers in order and identify the middle number. If there are two middle numbers, add them together and divide by 2.

Front

What is the mode of a set of numbers?

Back

The mode is the number that appears most frequently in a set of numbers.

Front

How do you calculate the range of a set of numbers?

Back

The range is calculated by subtracting the smallest number from the largest number in the set.

Front

If the scores are 155, 165, 138, 172, 127, 193, 142, what is the range?

Back

The range is 66.

Front

What do you do when finding the median and there are two middle numbers?

Back

Add the two numbers together and divide by 2.

Front

To find the average (mean), what do you divide by?

Back

You divide by the number of items in the set.

Front

If the mode score on a test was 94, what does that mean?

Back

It means more students received a score of 94 than any other score.

Front

What is the median of the following set: 127, 138, 142, 155, 165, 172, 193?

Back

The median is 155.

Front

What is the first step in finding the mean of a set of numbers?

Back

Add all the numbers together.