Sample Solution from
Elementary Statistics: Picturing the World (7th Edition)
7th Edition
ISBN: 9780134683416
Chapter 1
Problem 1.1.1RE
Try another sample solution
To determine

To identify: The population and sample.

To describe: The sample data.

Expert Solution

Answer

Answer:

Population: The entire collection of responses from U.S. adults.

Sample: 4,787 adults who responded to a study.

Sample data: 15% of adults use ride-hailing applications and the remaining 85% did not use ride-hailing applications.

Explanation of Solution

Explanation:

Given info:

A study was conducted on 4,787 adults and found that 15% of the adults were using ride-hailing applications.

Justification:

Population:

A collection of all outcomes, people or measurements of interest are termed as population.

The survey is conducted to study the usage of ride-hailing applications among adults in United States. Thus, the population consists of all U.S. adults.

Sample:

The information about the population is obtained from the sample. That is, a sample is considered to be a subset of the given population.

The survey is made on 4,787 adults who responded to the survey. This is considered to be a sample because only sub portions from the entire adults were surveyed. Thus, the sample is 4,787 adults.

Sample data:

In the survey of 4,787 adults, 15% were using ride-hailing applications and 85% (=100%15%) did not use ride-hailing applications.

Not sold yet?Try another sample solution