Statistics Chapter 1 Quiz

What is the term for variables that have distinct categories according to some characteristic or attribute?

• Qualitative variables

• Continuous variables

• Quantitative variables

• Discrete variables

What is the difference between the nominal and ordinal level of measurement?

• Nominal level has precise differences between units of measure, while ordinal level does not.

• Nominal level has a meaningful zero, while ordinal level does not.

• Nominal level can be ranked, while ordinal level cannot.

• Nominal level has no order or ranking, while ordinal level can be ranked.

Which sampling method is used when a sample is selected based on convenience or availability?

• Convenience sampling

• Systematic sampling

• Random sampling

• Stratified sampling

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

What is the term for the difference between the results obtained from a sample and the results obtained from the population?

• Sampling error

• Nonsampling error

• Convenience error

• Measurement error

Tags

CCSS.6.SP.A.3

In an experimental study, what is the variable that is being manipulated by the researcher?

• Independent variable

• Explanatory variable

• Outcome variable

• Dependent variable

Tags

CCSS.HSS.IC.B.3

What is the term for a study where the researcher merely observes what is happening or what has happened in the past?

• Cross-sectional study

• Retrospective study

• Observational study

• Longitudinal study

Tags

CCSS.HSS.IC.B.3

What is the term for a variable that influences the dependent or outcome variable but was not separated from the independent variable?

• Confounding variable

• Lurking variable

• Extraneous variable

• Control variable

What is the term for a method of selecting a sample using random numbers?

• Systematic sampling

• Stratified sampling

• Random sampling

• Cluster sampling

Tags

CCSS.HSS.IC.B.3

What is the term for variables that can be counted or measured?

• Quantitative variables

• Discrete variables

• Qualitative variables

• Continuous variables

What is the term for a study where the data are collected over a period of time, past and present?

• Longitudinal study

• Cross-sectional study

• Observational study

• Retrospective study

Tags

CCSS.HSS.IC.B.3