Stats: Chapter 1 Test Review

Categorical or Quantitative?
Years of schooling completed

• Categorical
• Quantitative

Categorical or Quantitative?
College Major

• Categorical
• Quantitative

Age of each student in Algebra class

• Categorical

• Quantitative

The data in the dot plot is ​ (a)   (normal or skewed).

The ​ (b)   should be used to represent the center.

• skewed
• Approx. Symmetric
• median
• mean
• mode
• range

The data in the dot plot is ​ (a)   (normal or skewed).

The ​​ (b)   should be used to measure the variability.

• skewed
• approx. symmetric
• Range
• Standard Deviation
• Interquartile Range (IQR)

The data in the dot plot is ​ (a)   (normal or skewed).

The ​ (b)   should be used to represent the center.

• skewed
• approx. symmetric
• median
• mean
• mode
• range

The data in the dot plot is ​ (a)   (normal or skewed).

The ​ (b)   should be used to represent the center.

• skewed
• approx. symmetric
• median
• mean
• mode
• range

The data in the dot plot is ​ (a)   (normal or skewed).

The ​ (b)   should be used to measure the variability.

• skewed
• approx. symmetric
• Interquartile Range (IQR)
• Standard Deviation
• Mode
• Range

When using IQR to find outliers, which formula will identify the upper limit?

• Q3 - 1.5(IQR)

• Q1 + 1.5(IQR)

• Q1 - 1.5(IQR)

• Q3 + 1.5(IQR)

When using IQR to find outliers, which formula will identify the lower limit?

• Q3 - 1.5(IQR)

• Q1 + 1.5(IQR)

• Q1 - 1.5(IQR)

• Q3 + 1.5(IQR)