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. ention the names of any four stages of Design hinking.
Ans. • mpathi e
• Define
• Ideate
• rototype
• est.
. plain the term ime series decomposition.
Ans. ime series decomposition involves thinking of a series as a combination of level, trend. easonality and noise
components.
Decomposition provides a useful abstract model for thinking about time series generally and for better understanding
problems during time series analysis and forecasting.
. ive t o points of difference bet een ross alidation and rain est plit.
Ans.
CROSS VALIDATION TRAIN-TEST SPLIT
ross validation is preferable in cases here your he rain est procedure is appropriate hen there is
dataset is relatively small. a sufficiently large dataset available.
ross validation gives you a more reliable rain est split does not gives a more reliable
measure accuracy of your model s quality. measure accuracy of your model s quality.
plitting data into multiple sets. plitting data into sets rain, test)
. electing the right analytical approach depends on the questions being asked.
In the light of the given statement, hich type of questions can be asked for
A. lassification approach
. Descriptive approach
Ans. A. A I I A IO A OA uestions being asked, hich require a yes no ans er.
. D I I A OA uestion being asked hich sho s the relationship.
. he follo ing is the diagram depicting the oundational methodology for data science.
A Analytic approach
Data
eedback
requirements
D
Data
valuation
understanding
Data
preparation
Ans. A I D A DI
C apstone P roj e ct

