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exam 1 qmb 3200 - Gary Bliss_ Ansel Diama.
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exam 1 qmb 3200 - Gary Bliss/ AnselDiama
What is considered to be the language of data? - ANS-statistics
What are the two main branches of statistics? - ANS-descriptive statistics and inferential
statistics
What is descriptive statistics? - ANS-the summary of a data set in the form of tables,
graphs, or the calculation of numerical values
What is inferential statistics? - ANS-extracting useful information from a sample to draw
conclusions about a population
What is data? - ANS-the numbers, facts, and figures that are collected, analyzed, and
summarized for presentation and interpretation; not all data start as numbers, but they
can be converted to numbers
What are elements? - ANS-the entities on which data are collected
What are variables? - ANS-characteristics of interest
What are observations? - ANS-measurements collected on each variable of the element
How do you find the total number of data values in a complete data set? - ANS-(# of
elements)(# of variables)
What are the two types of data? - ANS-categorical and quantitative
What type of data can be either numeric or non-numeric? - ANS-Categorical
What type of data can only be numerical? - ANS-Quantitative
What are the two scales of measurement for numeric categorical data? - ANS-nominal
and ordinal
, What are the two scales of measurement for non-numeric categorical data? -
ANS-nominal and ordinal
What are the two scales of measurement for numeric quantitative data? - ANS-interval
and ratio
What is categorical data? - ANS-data that are grouped by categories; can be either
numeric or non-numeric
What is another term for categorical data? - ANS-qualitative data
What is quantitative data? - ANS-data with numerical values
In order of the one that gives the least amount of information to the one that gives the
most, what are the four scales of measurement? - ANS-nominal, ordinal, interval, and
ratio
What is nominal data? - ANS-data that are labels or names; no intrinsic order; can be
numeric or non-numeric
Give an example of nominal data. - ANS--type of housing you live in (e.g. single family,
apartment, condo)
-what state you live in
-brand name (e.g. car - ford, chevy)
What is ordinal data? - ANS-nominal in nature but has an order; can be numeric or
non-numeric
Give an example of ordinal data. - ANS--grade level (e.g. freshman, sophomore, junior,
senior)
-attitudes (e.g. agree, disagree, strongly disagree)
What is interval data? - ANS-numeric data for which the differences in order are
meaningful; can be measured along a continuum
Give an example of interval data. - ANS--Fahrenheit temperature (difference between
70 degrees and 80 degrees: difference of 10 degrees is meaningful)
-SAT Scores
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