7 - 4.1 Lesson 7 - Appropriate Measures of Center and Variation

Multiple Select

Select the (2) measures of CENTER.

• Mean

• Median

• IQR

• Range

Multiple Select

Select the (2) measures of VARIABILITY.

• Mean

• Median

• IQR

• Range

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​Remember!

Mean and Range ARE affected by outliers and therefore are not great choices when outliers are present.

​Median and IQR ARE NOT affected by outliers as much and therefore are a better choice when outliers are present.

Multiple Choice

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

• Mean

• Median

• IQR

• Range

Multiple Choice

If there is NOT an Outlier in the set (data is symmetric) which measure of VARIABILITY would you use?

• Mean

• Median

• IQR

• Range

Multiple Select

Which measurements would represent the BEST measures of center & variability for the data set shown?

• Mean

• Median

• IQR

• Range

Multiple Select

Which measurements would represent the BEST measures of center & variability for the data set shown?

• Mean

• Median

• IQR

• Range

Multiple Select

Study the graph and determine one measure of center and one measure of variability that would best describe the data.

• Range

• Median

• Mean

• IQR

Multiple Select

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