Comparing Distributions and Finding Outliers

A value that is much higher or much lower than the other values in a set of data.

• Outlier

• Box Plot

• Range

• Histogram

Which value(s) are outlier(s) for the age of male Oscar winners?

• 80

• 76

• 60

• 29

If $88,000 was found to be an outlier, which salary would be the new maximum?

• $55,000

• $28,000

• $88,000

• $72,000

Which of the boxpots has the larger larger interquartile range?

• female

• male

• they're the same

• impossible to tell

The prices at several different stores for a pair of shoes are shown below.
$78, $79, $81, $82, $83
Two days later, another store has the same shoes on sale for $65. How does the new price affect the data?

• Only the range was affected.

• The median increased, and the range increased.

• The mean increased, and the range increased.

• The mean decreased and the range increased.

Using the information below, identify which of the following is NOT an outlier:
Q1 = 53
Q2 = 55
Q3=61

• 73

• 40

• 80

• 73.5

Using the information below, identify which of the following is an outlier:
Q1 = 3
Q2 = 7
Q3 = 12

• 22

• 25.5

• -8.5

• 26

Use the 1.5 IQR rule to determine if there are any outliers for the following numbers:
84, 88, 72, 74, 98, 16, 94 

• Yes, 16 is an outlier.

• Yes, 33 is an outlier.

• Yes, 98 is an outlier.

• There are no numbers less than 39 or greater than 124, therefore there are no outliers.

Describe the data distribution shape of the graph.

• Skewed right

• Skewed left

• Uniform

• Symmetrical

Describe the histogram:

• Left Skewed

• Symmetrical

• Right Skewed

• Uniform