Midterm Exam Practice Questions

Front

What is case C -> Q in research studies?

Back

Case C -> Q refers to a study design where a categorical variable (C) is used to predict a quantitative outcome (Q).

Front

What is a histogram?

Back

A histogram is a graphical representation of the distribution of numerical data, showing the frequency of data points within specified ranges (bins).

Front

What is cluster sampling?

Back

Cluster sampling is a sampling technique where the population is divided into clusters (often geographically), and entire clusters are randomly selected for the study.

Front

What is the probability of an event?

Back

The probability of an event is a measure of the likelihood that the event will occur, expressed as a number between 0 and 1.

Front

What is simple random sampling?

Back

Simple random sampling is a sampling technique where every member of the population has an equal chance of being selected.

Front

What is the purpose of a study examining the relationship between two variables?

Back

The purpose is to determine if there is a correlation or causal relationship between the variables.

Front

What does a frequency table represent?

Back

A frequency table summarizes the number of occurrences of each category or value in a dataset.

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities, while quantitative data represents numerical values that can be measured.

Front

What is stratified sampling?

Back

Stratified sampling is a sampling method where the population is divided into subgroups (strata) and random samples are taken from each stratum.

Front

What is systematic sampling?

Back

Systematic sampling is a method where samples are selected at regular intervals from a sorted list of the population.