Adv Algebra Review Flashcard

Front

What is a Cluster Random Sample?

Back

A sampling method where entire groups (clusters) are randomly selected, and all individuals within those groups are surveyed.

Front

What is a Simple Random Sample?

Back

A sampling method where every individual has an equal chance of being selected, typically achieved through random selection.

Front

What is a Stratified Random Sample?

Back

A sampling method that involves dividing the population into subgroups (strata) and randomly sampling from each stratum.

Front

What is Systematic Random Sampling?

Back

A sampling method where individuals are selected at regular intervals from a randomly ordered list.

Front

How do you find the mode of a data set?

Back

The mode is the number that appears most frequently in a data set.

Front

What is the range of a data set?

Back

The range is the difference between the highest and lowest values in a data set.

Front

What is an Observational Study?

Back

A study where the researcher observes and records behavior without manipulating any variables.

Front

What is an Experiment in research?

Back

A study where the researcher manipulates one or more variables to determine their effect on another variable.

Front

How do you calculate the mode of the data set: 12, 5, 9, 18, 22, 25, 5?

Back

The mode is 5, as it appears most frequently.

Front

How do you calculate the range of the data set: 12, 5, 9, 18, 22, 25, 5?

Back

The range is 20, calculated as 25 (max) - 5 (min).