D10 U7 Rev Measures of Center and Variation

Outlier

Best Measure of Center

• Mean

• Median

Outlier

Best measure of variation:

• IQR

• Standard Deviation

No Outlier

Best Measure of Center

• Mean

• Median

No Outlier

Best measure of variation:

• IQR

• Standard Deviation

Symmetric

Best measure of center:

• Mean

• Median

Symmetric

Best measure of variation:

• IQR

• Standard Deviation

Skewed

Best measure of variation:

• IQR

• Standard Deviation

Skewed

Best measure of center:

• Mean

• Median

If there is an outlier in your data (a point very far from the other data, or a very long whisker), what is the best measure of center to use and why?

• Median is best because the outlier skews the data.

• Mean is best because the outlier doesn't skew the data.

• Mode is always the best measure of center because it shows the most.

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

Outlier

Best Measure of Center

• Mean

• Median

• IQR

• Standard Deviation