Mean, Median, Mode, Range, Outlier

Find the median of the data set.

4, 7, 3, 5, 6

• 3

• 4

• 5

• 6

Find the mode of the data set.

14, 20, 16, 14, 18, 20, 19, 13, 15, 17

• No mode

• 14

• 20

• both 14 and 20

Find the mean of the data set.

8, 12, 16, 10, 8, 6

• 60

• 10

• 6

• 14

The middle number of an ordered set of data is called what?

• mean

• median

• mode

• outlier

Match the following terms with its correct definition.

• The sum of all values divided by the total number of values

• Mean or Average

• The middle value in a list of numbers when arranged in ascending order

• What if there are 2 numbers in the middle?

• Add together, and divide by 2.

• Mode

• The difference between the highest and lowest values in a set of numbers

• Median

• The number that appears most frequently in a set of numbers

• Range

Xavier earned the following test scores in math: 95, 90, 100, 85, 80 Ms. Bradley accidentally entered his next test score as 0. Which of these statements are true? Check all that apply.

• Before the error, the mean and the median were both 90.

• Before the error, the mean was 90 and the median was 100.

• The error added an outlier to the data set.

• After the error, the median remained the same.

• The mean was impacted by the error more than the median.

Find the mean, median, and mode(s) of the data with and without the outlier. Which measure did the outlier affect the most?

Identify the outlier in the dataset: 100, 102, 99, 101, 103, 450.

• 99

• 103

• 450

• 100

Consider the dataset: 8, 9, 10, 10, 11, 12, 50. Which number is an outlier?

• 8

• 10

• 12

• 50

Consider the dataset: 3, 4, 5, 5, 6, 7, 22. Which number is an outlier?

• 3

• 22

• 5

• 7