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The Truth about Outliers Part One

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APSTAT-JLUVPN

Which of the following statements about outliers is true?

I. Outliers are easier to recognize in a histogram than in a stemplot.

II. When a distribution shows a possible outlier, the mean should be calculated two ways - with and without the outlier.

III. When a histogram shows a possible outlier, the bin width should be increased until the suspected value no longer looks like an outlier.

A

I only

B

II only

C

III only

D

I and III only

E

II and III only