Statistics: Quiz: Introduction to Statistics

Quiz: Introduction to Statistics

1. Which of these is an example of a categorical variable?

a. flavor of soft drink ordered by each customer at a fast food restaurant

b. height, measured in inches, for each student in a class

c. points scored by each player on a team

2. Numerical and pictorial information about variables are called

a. analytical statistics

b. descriptive statistics

c. inferential statistics

3. The entire group of interest for a statistical conclusion is called the

a. data

b. population

c. sample

4. A subgroup that is representative of a population is called

a. a category

b. data

c. a sample

5. Statistical inference is

a. the process of estimates and conclusions carefully based on data from a sample

b. the process of estimates and conclusions carefully based on data from an entire population

c. pictorial displays that summarize data

6. Two types of statistical variables are

a. categorical and descriptive

b. categorical and numerical

c. descriptive and numerical