Units 3 and 4 Review

Front

What does the term 'population' refer to in research?

Back

The group of people being surveyed.

Front

Does a strong positive association between body fat and blood pressure imply causation?

Back

No, there could be other factors such as genetics and lifestyle choices that may help explain the association between blood pressure and body fat.

Front

Back

Front

What should a residual plot look like if there is no pattern?

Back

Random with no pattern.

Front

True or False: All samples lead to a good prediction about an entire population.

Back

False.

Front

What is a sample in research?

Back

A subset of the population selected for observation and analysis.

Front

What is the difference between correlation and causation?

Back

Correlation indicates a relationship between two variables, while causation indicates that one variable directly affects the other.

Front

What is a confounding variable?

Back

A variable that influences both the independent and dependent variable, potentially skewing the results.

Front

What does a p-value indicate in hypothesis testing?

Back

The probability of obtaining results at least as extreme as the observed results, assuming the null hypothesis is true.

Front

What is the purpose of a control group in an experiment?

Back

To serve as a baseline to compare the effects of the treatment or intervention.