Q1.

Identify each sample, and determine a population from which it was selected. Then classify the type of data collection used.

A record company wants to test five designs for an album cover. They randomly invite ten teens from a local high school to view the album covers.

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Answer

The sample is ten teens from a local high school.

The population is all students of a high school.

The type of data collection used is an observational study.

1Step 1. Identify each sample, and suggest a population from which it was selected.

A sample is some portion of a larger group called the population.

Therefore, the sample is ten teens from a local high school and the population is all students of a high school.

2Step 2. Classify the type of data collection used.

Observational Study is a data collection technique in which data are recorded after just observing the sample.

As data are recorded after just observing the sample. Therefore, the type of data collection used is observational study.