Outliers and the effects of removing/adding data on MMM

If the data set is {3, 5, 7, 9} and a new value 11 is added, what is the new mean?

• 6

• 7

• 8

• 9

Tags

VA.6.PS.2.b

In the data set {4, 4, 5, 6, 7, 8, 9}, which number is an outlier?

• 4

• 5

• 9

• 7

Tags

VA.6.PS.2.c

Which of the following data sets has a mean of 5?

• {3, 5, 7}

• {4, 5, 6}

• {2, 5, 8}

• {1, 5, 9}

Tags

VA.6.PS.2.a

If the data set {10, 12, 14, 16} has a value removed, and the new mean is 12, which value was removed?

• 10

• 12

• 14

• 16

Tags

VA.6.PS.2.b

In the data set {2, 3, 3, 3, 4, 5, 100}, what is the effect of the outlier on the mean?

• Increases the mean

• Decreases the mean

• No effect

• Makes the mean equal to the median

Tags

VA.6.PS.2.c

If a value of 20 is added to the data set {5, 10, 15}, what is the new mean?

• 10

• 12.5

• 15

• 17.5

Tags

VA.6.PS.2.b

In the data set {1, 2, 2, 3, 4, 5, 20}, which number is an outlier?

• 1

• 2

• 5

• 20

Tags

VA.6.PS.2.c

Which of the following data sets has a mean of 10?

• {8, 10, 12}

• {9, 10, 11}

• {7, 10, 13}

• {6, 10, 14}

Tags

VA.6.PS.2.a

If the data set {6, 8, 10, 12} has a value changed to 14, what is the new mean?

• 9

• 10

• 11

• 12

Tags

VA.6.PS.2.b

In the data set {3, 3, 4, 5, 6, 7, 50}, what is the effect of the outlier on the median?

• Increases the median

• Decreases the median

• No effect

• Makes the median equal to the mean

Tags

VA.6.PS.2.c