17 Questions
What type of data does hair color represent?
Qualitative data
Which of the following is an example of polynomic data?
Education level
What is the main characteristic of quantitative data?
It is always measured on a numerical scale
Why are numerical techniques not applicable to qualitative data?
Because they are not measured on a numerical scale
What is the term for qualitative data that can take only two values?
Dichotomic
What is a characteristic of nominal data?
The categories are mutually exclusive
What type of data is hair color?
Nominal qualitative
What is an example of a nominal variable?
Brand of PC
What is the main difference between nominal and ordinal data?
Ordinal data has a logical order, while nominal data does not
Which of the following is NOT a characteristic of nominal data?
The categories have a non-arbitrary zero point
What type of data is marital status?
Nominal qualitative
What is the purpose of frequency distributions?
To summarize large volumes of data values
What type of data requires categorization before creating a frequency distribution?
Interval data
What is the formula to determine the size of each class in a frequency distribution?
h = (max - min) / m
What type of table shows the frequency or number of occurrences in each of several categories?
Frequency table
What is the term for the number of values that occur in each class in a frequency distribution?
Absolute frequency
What type of data is typically presented in a contingency table?
Qualitative dichotomic data
This quiz covers the basics of variables in statistics, including qualitative, quantitative, discrete, and continuous variables. Learn to identify and classify different types of variables with this informative quiz.
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