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Exam 1: What Is Statistics

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Question 41

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What level of measurement is the Centigrade temperature scale?

A) Nominal
B) Ordinal
C) Interval
D) Ratio

E) None of the above
F) C) and D)

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Question 42

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The lowest level of measurement that has some sort of ranking is __________.

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Question 43

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Data measured on a nominal scale can only be classified into categories.

The Nielsen Ratings break down the number of people watching a particular television show by age. What level of measurement is age?

Which word is NOT part of the definition of descriptive statistics?

A bank asks customers to evaluate the drive-thru service as good, average, or poor. Which level of measurement is this classification?

What type of variable is the number of robberies reported in your city?

The principal difference between the interval and ratio scale of measurement is that the ratio scale has a __________________.

The ordinal level of measurement is considered the "lowest" level of measurement.

A listing of 100 family annual incomes is an example of statistics.

To infer something about a population, we usually take a sample from the population.

A store asks shoppers for their zip code to identify market areas. Zip codes are an example of ratio data.

The main purpose of descriptive statistics is to:

The final rankings of the top 20 NCAA college basketball teams are an example of which level of measurement?

A population is a collection of all individuals, objects, or measurements of interest.

If we select 100 persons from 25,000 registered voters and question them about candidates and issues, the 100 persons are referred to as the population.

The CIA World Factbook cited these numbers for the United States: • The birthrate is 14.14 births per 1,000 population. • The average life expectancy for females is 80 years. • Approximately 290 million persons reside in the United States. Each of these numbers is referred to as a statistic.

The "highest" level of measurement is ______________.

When TV advertisements report "2 out of 3 dentists surveyed indicated they would recommend Brand X toothpaste to their patients," an informed consumer may question the conclusion because the: