Chapter Pre-Assessment

Section:

Name

Which of the following is a quantitative variable?

• blood type
• color preference
• income
• gender

Which of the following is a primary source of data?

• books
• medical record
• newspapers
• surveys

Which of the following data collection is most appropriate to determine the preferred hair coloring brand of hair stylist?

• experimental
• observational
• records inspection
• surveys

Which sampling method gives all members of the population equal chances of being included in the sample?

• cluster sampling
• simple random sampling
• stratified random sampling
• systematic sampling

Systematic sampling is used to generate a sample of 25 from a population of 180. After every how many names in the list of members of the population will elements of the sample be chosen?

• 6
• 7
• 8
• 9

Which simple methods is illustrated in the given situation below?

• convenience
• purposive
• quota
• snowball

Which graph is most appropriate to show trends in the behavior of data over time?

• bar graph
• line graph
• pie chart
• stem-and-leaf plot

To what stem will the score 125 belong if it is to be included in a stem-and-leaf plot?

• 1
• 2
• 5
• 12