Comparing Distributions and Finding Outliers

Given the following distributions, which has the highest median?

• Red

• Purple

• Black

Given the following distributions, which has the smallest IQR?

• Red

• Purple

• Black

Given the 5 number summary, Find the lower fence.

• 171.5

• 15.5

• 43.4

• 7

Given the 5 number summary, the minimum is an outlier.

• True

• False

Given the data set below:
15, 56, 58, 60, 63, 75, 80, 80, 85
How does the outlier affect the distribution of the data?

• The outlier skews the distribution to the left.

• The outlier skews the distribution to the right.

• The outlier makes the distribution more symmetrical.

• The outlier has no effect on the distribution.

Which data point did the statistician exclude?

• (2.3, 11.0)

• (4.2, 16.5)

• (6.4, 23.1)

• (8.2, 24.3)

Given the following distributions, which is symmetric?

• Red

• Purple

• Black

Given the following distributions, which is skewed to the right?

• Red

• Purple

• Black

Given a set of skewed data, which is an appropriate measure of spread?

• Mean

• Median

• Standard Deviation

• Interquartile Range (IQR)

Given the 5 number summary, find the upper fence.

• 171.5

• 15.5

• 43.5

• 7