Challenge Yourself #CHAPTER1

The number of absences per year that a worker has is an

example of what type of data?

• Nominal

• Qualitative

• Discrete

• Continuous

Answer explanation

This is because the number of absences can be counted in whole numbers (e.g., 1, 2, 3) and cannot be a fraction or decimal. 

What are the boundaries of 25.6 ounces?

• 25–26 ounces

• 25.55–25.65 ounces

• 25.5–25.7 ounces

• 20–39 ounces

Data that can be classified according to color are

measured on what scale?

• Ratio

• Ordinal

• Nominal

• Interval

A researcher divided subjects into two groups according

to gender and then selected members from each group

for her sample. What sampling method was the

researcher using?

• Cluster

• Random

• Systematic

• Stratified

A study that involves no researcher intervention is

called

• An experimental study.

• A noninvolvement study.

• An observational study.

• A quasi-experimental study.

When the population of college professors is divided

into groups according to their rank (instructor, assistant

professor, etc.) and then several are selected from each

group to make up a sample, the sample is called a cluster

sample.

• TRUE

• FALSE

Answer explanation

False, it is stratified sampling.

Two major branches of statistics are ___and ___?

• Descriptive, Inferential
• Continuous, Discrete

• Nominal, Ordinal

Answer explanation

The correct answer is Descriptive and Inferential.

The variable temperature is an example of a quantitative variable

• TRUE

• FALSE

Answer explanation

Temperature is an example of a quantitative variable.