Statistics of Sample and Population

A poll was conducted in which 1000 adults were asked if they prefer bottled water or tap water, and 57% of them said they prefer bottled water. In this scenario, the 57% is a _____.

• population

• sample

• parameter

• statistic

There are 17,246,372 high school students in the U.S. In a study of 8505 U.S. high school students 16 years of age or older, 44.5% of them said they texted while driving at least once in the past 30 days. Which of the following represents the sample?

• the 17,246,372 high school students in the U.S.

• the 8505 U.S. high school students 16 years of age or older

• the 44.5% who said they texted while driving

• the past 30 days

Suppose a survey of 584 women in the U.S. found that more than 65% are the primary investor in their household. Which part of the survey represents the descriptive branch of statistics?

• There is an association between U.S. women and being the primary investor in their household.

• There is an association between the 584 women and being the primary investor in their household.

• 65% of women in the sample are the primary investor in their household.

• 584 women were surveyed

_________ consist of information coming from observations, counts, measurements, or responses.

• Statistics

• Data

• Population

• Sample

Determine whether the data set is a population of a sample:

The amount of energy collected from every wind turbine on a wind farm.

• Population

• Sample

Suppose a survey of 584 women in the U.S. found that more than 65% are the primary investor in their household. Choose the best inference.

• There is an association between U.S. women and being the primary investor in their household.

• There is an association between the 584 women and being the primary investor in their household.

• 65% of women in the sample are the primary investor in their household.

• 584 women were surveyed

What is a sample?

• A tool used to collect statistical data

• Statistics collected from an entire population

• The factual information collected from a survey or other source

• A subgroup chosen from a population

Chosen at random, 580 customers at a car dealership are contacted and asked their opinions of the service they received.
This is what type of sample?

• convenience

• stratified

• simple random sample

• cluster

A poll about favorite sports is taken from 100 seniors in a high school where the senior class has 575 students. 23% of respondents said that baseball was their favorite sport.
The "100" is the ______

• Sample Size

• Population Size

• Statistic

• Parameter

A poll about favorite sports is taken from 100 seniors in a high school where the senior class has 575 students. 23% of respondents said that baseball was their favorite sport.
The "575" is the ______

• Sample Size

• Population Size

• Statistic

• Parameter