Mean or Median Outlier

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

Find the mean of the data set.

31, 20, 51, 31, 27

• 31

• 51

• 27

• 30

Find the median of the data set.

4, 7, 3, 5, 6

• 3

• 4

• 5

• 6

The table shows the distances that schools will travel to attend a field trip to the state capitol. School 7 has to travel 15 miles. If this outlier is added to the data, which is a true statement about how it changes the data in the table? Select all statements that apply.

• The data is more spread.

• The median stays the same, and the mean changes.

• There is no change in the median and mean.

• Both the median and the mean change.

• The data is less spread.

• a

• b

• c

• d

• A

• B

• C

• D

If the weight of the polar bear is removed, which statement is true?

• The mean decreases more than the median because the polar bear is a high

  outlier.

• The mean decreases less than the median because the polar bear is a high

  outlier.

• The mean decreases more than the median because the high value balances

  the low value.

• The mean decreases less than the median because the high value balances

  the low value.

Gabriella's quiz grades are 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.

The prices at several different stores for a pair of shoes are $78, $79, $81, $82, $83. Two days later, another store has the same shoes on sale for $65. How does the new price affect the data? The mean will (a)   .

• not change

• increase.

• decrease