Statistics

Front

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

Back

True

Front

Statistics are used as a basis for making decisions.

Back

True

Front

Descriptive statistics are used to find out something about a population based on a sample.

Back

True

Front

Are there four levels of measurement: qualitative, quantitative, discrete, and continuous?

Back

False

Front

Is the ordinal level of measurement considered the "lowest" level of measurement?

Back

False

Front

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

Back

True

Front

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.

Back

False

Front

Principal difference between interval and ratio scale?

Back

Ratio scale has a meaningful zero point.

Front

Is the number of children in a family a discrete variable?

Back

True

Front

The main purpose of descriptive statistics is to:

Back

Summarize data in a useful and informative manner.