Mean, Median, Mode and Outliers

Gabriella’s quiz grades are shown below.
88, 92, 92, 96, 98
Gabriella scored a 20 on her sixth quiz. What effect does this score have?

• The low score causes the median to increase.

• The low score causes the median to decrease.

• The low score causes the mean to increase.

• The low score causes the mean to decrease.

Find the Mode of the following numbers.

23, 3, 2, 23, 5, 2, 23, 6, 50

• 2

• 23

• 5

• 50

Another name for the "mean"

• Middle number

• Average

• Number that repeats the most

• Rude

Find the median:
5, 6, 3, 9, 0, 4, 1, 2, 7

• 4

• 4.1

• 5

• 4.5

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

Select all that apply to this data set.

• The outlier is 0

• The mode is 4

• The median is 4

• The mean is 3

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

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.

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

• 3

• 22

• 5

• 7

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

• 8

• 10

• 12

• 50