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UCF QMB3200 MIDTERM STUDY QUESTIONS AND ANSWERS
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UCF QMB3200 MIDTERM STUDY QUESTIONS AND ANSWERS
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UCF QMB3200 MIDTERM STUDYQUESTIONS AND ANSWERS
Analytics6-6ans--
the6scientific6process6of6transforming6data6into6insight6for6making6better6decisions
Descriptive6Analytics6-6ans--
Analytical6techniques6that6describe6what6has6happened6in6the6past.
Predictive6Analytics6-6ans--
Analytical6techniques6that6use6models6constructed6from6past6data6to6predict6the6future6or
6assess6the6impact6of6one6variable6on6another.
Prescriptive6Analytics6-6ans--Analytical6techniques6that6yield6a6course6of6action.
Big6Data6-6ans--
A6set6of6data6that6cannot6be6managed,6processed,6or6analyzed6with6commonly6available6
software6in6a6reasonable6amount6of6time.6Big6Data6are6characterized6by646v's:6volume,6v
elocity,6variety,6and6veracity.
Data6Mining6-6ans--
The6process6of6using6procedures6from6statistics6and6computer6science6to6extract6useful6i
nformation6from6extremely6large6databases.
Frequency6Distribution6-6ans--
A6tabular6summary6of6data6showing6the6number6(frequency)6of6observations6in6each6of6s
everal6nonoverlapping6categories6or6classes.
Relative6Frequency6Distribution6-6ans--
A6tabular6summary6of6data6showing6the6fraction6or6proportion6of6observations6in6each6of6
several6nonoverlapping6categories6or6classes.
Percent6Frequency6Distribution6-6ans--
A6tabular6summary6of6data6showing6the6percentage6of6observations6in6each6of6several6n
onoverlapping6classes.
Bar6Chart6-6ans--
A6graphical6device6for6depicting6categorical6data6that6have6been6summarized6in6a6freque
ncy,6relative6frequency,6or6percent6frequency6distribution.
, Pie6Chart6-6ans--
A6graphical6device6for6presenting6data6summaries6based6on6subdivision6of6a6circle6into6s
ectors6that6correspond6to6the6relative6frequency6for6each6class.
Class6Midpoint6-6ans--the6value6halfway6between6the6lower6and6upper6class6limits
Dot6Plot6-6ans--
a6graphical6device6that6summarizes6data6by6the6number6of6dots6above6each6data6value6
on6the6horizontal6axis
Histogram6-6ans--
A6graphical6display6of6a6frequency6distribution,6relative6frequency6distribution,6or6percent
6frequency6distribution6of6quantitative6data6constructed6by6placing6the6class6intervals6on6t
he6horizontal6axis6and6the6frequencies,6relative6frequencies,6or6percent6frequencies6on6t
he6vertical6axis.
Cumulative6Frequency6Distribution6-6ans--
A6tabular6summary6of6quantitative6data6showing6the6number6of6data6values6that6are6less6
than6or6equal6to6the6upper6class6limit6of6each6class.
Cumulative6Relative6Frequency6Distribution6-6ans--
A6tabular6summary6of6quantitative6data6showing6the6fraction6or6proportion6of6data6values
6that6are6less6than6or6equal6to6the6upper6class6limit6of6each6class.
Cumulative6Percent6Frequency6Distribution6-6ans--
A6tabular6summary6of6quantitative6data6showing6the6percentage6of6data6values6that6are6l
ess6than6or6equal6to6the6upper6class6limit6of6each6class.
Stem-and-leaf6Display6-6ans--
a6graphical6display6used6to6show6simultaneously6the6rank6order6and6shape6of6a6distributi
on6of6data
Crosstabulation6-6ans--
A6tabular6summary6of6data6for6two6variables.6The6classes6for6one6variable6are6represent
ed6by6the6rows;6the6classes6for6the6other6variable6are6represented6by6the6columns.
Simpson's6Paradox6-6ans--
Conclusions6drawn6from6two6or6more6separate6crosstabulations6that6can6be6reversed6wh
en6the6data6are6aggregated6into6a6single6crosstabulation.
Scatter6Diagram6-6ans--
A6graphical6display6of6the6relationship6between6two6quantitative6variables.6One6variable6i
s6shown6on6the6horizontal6axis6and6the6other6variable6is6shown6on6the6vertical6axis.
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