Unit 4 Test: Review

There are two measures of center.

• True 
• False

The mean is a measure of center.

• True 
• False

The mean should be used as the measure of center when there are outliers.

• True
• False

The Interquartile Range (IQR) is found by subtracting Q3 from Q1 (Q1 - Q3).

• True
• False

Complete the following: "The following box-and-whisker plot is  _______________."

• skewed right
• skewed left
• symmetric

Complete the following: "The following box-and-whisker plot is  _______________."

• skewed right
• skewed left
• symmetric

Determine which option is not true.

• Class #1 had a greater median.
• Class #2 has a greater max.
• Class #2 had a greater Q3.
• Class #1 had a lower Q1.

Find the Interquartile Range (IQR) of the following box-and-whisker plot.

• 8
• 3
• 5
• 6

• 29
• 31
• 32
• 23

• A
• B
• C
• D