Appropriate Center and Variability

Select all the true statements about the data displayed.

• School 1's median is higher than School 2.

• School 2 has a lower variability than School 1.

• School 1 is skewed left.

Select all that statements that are true based on the box plot.

• It is skewed right.

• It is skewed left.

• Mean > Median

• Mean < Median

The data set below has an outlier of 42.
2, 5, 12, 15, 19, 4, 6, 11, 16, 18, 12, 12, 42
What effect does removing the outlier have on the distribution of the data?

• The mean will decrease

• The median will decrease

• The mean will increase

• The median will increase

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.

The data below represent the ages of several people in a class.What effect does Mr. Smith’s age have on the data set?

• Mr. Smith’s age increases the mode of the data.

• Mr. Smith’s age decreases the mean of the data.

• Mr. Smith’s age increases the mean of the data.

• Mr. Smith’s age increases the median of the data.

When the data distribution is skewed, which is the better measure of CENTER?

• Mean

• Median

• Mode

• Standard Deviation

• Interquartile Range

Which is a good measure of center when the data contains an outlier?

• mean

• median

• mode

Which measure of variability should be chosen if mean was a good measure of center?

• MAD

• IQR

Which measure of variability should be chosen if median was a good measure of center?

• MAD

• IQR

What is the mean of the data set: 44, 43, 42, 40, 42, 45, 39, 38, 18.

ONLY TYPE IN A NUMBER