Semester Review 4: Mean, Median, Mode& 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 total count of numbers.

Front

How do you find the median of a data set?

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 data set?

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 of a set of numbers?

Back

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

Front

If a data set is: 5, 0, 9, 9, 3, 0, 5, 5, 4, what is the mode?

Back

5

Front

Find the mean of these numbers: 5, 11, 2, 12, 4, 2.

Back

6

Front

True or False: A data set can have more than one mode.

Back

True

Front

When finding the median, what do you do if there are two middle numbers?

Back

Add them together and divide by 2.

Front

What is the formula to calculate the mean?

Back

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

Front

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

Back

It means that no number appears more than once in the data set.