ULL QMET 251 Exam 1 (Benton) Questions and Answers Already Passed Latest Update 2025-
2026
to make decisions in business - Answers What do we use statistics for?
Statistics - Answers A set of knowledge and skills used to collect, organize, analyze, and
interpret data to assist in making more effective decisions
Descriptive statistics - Answers Describing an existing set of data
Descriptive analytics - Answers Another name for descriptive statistics
Inferential statistics - Answers A decision, estimate, prediction, or generalization about a
population based on a sample
Population - Answers A collection of all possible individuals, objects, or measurements of
interest
Sample - Answers A portion of the population of interest
-Cost
-Some tests require you to destroy the item
-Not possible to test all members of a population - Answers Why take a sample instead of
studying the whole population?
Qualitative variable - Answers The characteristics being studied is nonnumeric
Attribute variable - Answers Another name for a qualitative variable
Quantitative variable - Answers Information that is reported numerically
Bar graph, pie chart, frequency table - Answers Examples of ways to display qualitative data
Histogram, frequency distribution table - Answers Examples of ways to display quantitative data
-Discrete variables
-Continuous variables - Answers Two types of quantitative variables
Discrete variables - Answers Variables that can only assume certain values and their are usually
gaps between values
Continuous variables - Answers Variables that can assume any value within a specified range
Discrete - Answers Which kind of variable includes only positive or negative whole numbers?
-nominal
2026
to make decisions in business - Answers What do we use statistics for?
Statistics - Answers A set of knowledge and skills used to collect, organize, analyze, and
interpret data to assist in making more effective decisions
Descriptive statistics - Answers Describing an existing set of data
Descriptive analytics - Answers Another name for descriptive statistics
Inferential statistics - Answers A decision, estimate, prediction, or generalization about a
population based on a sample
Population - Answers A collection of all possible individuals, objects, or measurements of
interest
Sample - Answers A portion of the population of interest
-Cost
-Some tests require you to destroy the item
-Not possible to test all members of a population - Answers Why take a sample instead of
studying the whole population?
Qualitative variable - Answers The characteristics being studied is nonnumeric
Attribute variable - Answers Another name for a qualitative variable
Quantitative variable - Answers Information that is reported numerically
Bar graph, pie chart, frequency table - Answers Examples of ways to display qualitative data
Histogram, frequency distribution table - Answers Examples of ways to display quantitative data
-Discrete variables
-Continuous variables - Answers Two types of quantitative variables
Discrete variables - Answers Variables that can only assume certain values and their are usually
gaps between values
Continuous variables - Answers Variables that can assume any value within a specified range
Discrete - Answers Which kind of variable includes only positive or negative whole numbers?
-nominal
