TPS Chapter 1 Review

Use the interquartile range to identify any outliers in the following data.

23, 22, 25, 16, 27, 43, 29, 40, 35

• No outliers.

• 43 is an outlier.

Study the graph and determine one measure of center and one measure of variability that would best describe the data. (hint: are there outliers?)

• Range

• Median

• Mean

• IQR

For this data set, the​ (a)   is the best measure of center and the​ (b)   is the better measure of variation.

• median
• IQR
• range
• mean
• mode

If there is an Outlier in the set which measure of CENTER would you use?

• Mean

• Median

• IQR

• Range

Select the (2) measures of CENTER.

• Mean

• Median

• IQR

• Range

• the spread of 5th period is greater than 2nd period
• the spread of 2nd period is greater than 5th period
• 5th period is skewed right

• only one of the data sets is symmetric
• the median in 1st period is greater than the median in 5th period
• the highest test score is the same in both classes
• the interquartile range is larger in 1st period than in 5th period

• symmetric, with outliers
• symmetric, with no outliers
• skewed to the left
• skewed to the right 

• both sets of data have the same median
• Ander's center is at 6
• Marcus's center is at 7
• Ander's spread is greater than Marcus's

Standard deviation is a measure of

• spread

• center

• shape

• outliers