CNSLl 503l /l CNSL503l Modulel 7:l (Latestl
2025/l 2026l Update)l Statisticsl |l Questionsl
&l Answers|l Gradel A|l 100%l Correctl
(Verifiedl Solutions)-l Portagel Learning
Q:l Explainl al correlationl coefficient.
Answer:
Al correlationl coefficient,l representedl byl thel symboll rl isl al descriptivel
statisticl thatl providesl al numericall valuel thatl indicatesl thel strengthl ofl thel
relationshipl betweenl twol variables.
Q:l Whilel ______l isl thel parametricl correlationl test,l _______l isl thel non-
parametricl correlationl test.
Spearman's;l Pearson's
Tukey's;l Pearson's
Whitney's;l Tukey's
Pearson's;l Spearman's
Answer:
Pearson's;l Spearman's
, Q:l Whatl isl thel differencel betweenl parametricl andl non-parametricl tests?
Answer:
Parametricl testsl includel assumptionsl aboutl thel populationl parameters,l
whereasl non-parametricl testsl makel nol assumptionsl aboutl thel parameters.
Q:l Truel orl False:l Correlationl coefficientsl arel notl sensitivel tol outliers.
Answer:
false
Q:l Truel orl False:l Thel nulll hypothesisl inl Pearson'sl rl testl statesl thatl thel
predictedl relationshipl doesl notl existl betweenl twol variables.
Answer:
true
Q:l Whichl ofl thel followingl arel limitationsl ofl correlationall analyses?l Selectl
alll thatl apply.
Theyl cannotl bel usedl tol determinel causation.
Theyl arel sensitivel tol outliers.
Theyl determinel relationshipsl betweenl variables.
Theyl requirel anl unrestrictedl range.
Statisticall softwarel cannotl bel usedl tol performl them
2025/l 2026l Update)l Statisticsl |l Questionsl
&l Answers|l Gradel A|l 100%l Correctl
(Verifiedl Solutions)-l Portagel Learning
Q:l Explainl al correlationl coefficient.
Answer:
Al correlationl coefficient,l representedl byl thel symboll rl isl al descriptivel
statisticl thatl providesl al numericall valuel thatl indicatesl thel strengthl ofl thel
relationshipl betweenl twol variables.
Q:l Whilel ______l isl thel parametricl correlationl test,l _______l isl thel non-
parametricl correlationl test.
Spearman's;l Pearson's
Tukey's;l Pearson's
Whitney's;l Tukey's
Pearson's;l Spearman's
Answer:
Pearson's;l Spearman's
, Q:l Whatl isl thel differencel betweenl parametricl andl non-parametricl tests?
Answer:
Parametricl testsl includel assumptionsl aboutl thel populationl parameters,l
whereasl non-parametricl testsl makel nol assumptionsl aboutl thel parameters.
Q:l Truel orl False:l Correlationl coefficientsl arel notl sensitivel tol outliers.
Answer:
false
Q:l Truel orl False:l Thel nulll hypothesisl inl Pearson'sl rl testl statesl thatl thel
predictedl relationshipl doesl notl existl betweenl twol variables.
Answer:
true
Q:l Whichl ofl thel followingl arel limitationsl ofl correlationall analyses?l Selectl
alll thatl apply.
Theyl cannotl bel usedl tol determinel causation.
Theyl arel sensitivel tol outliers.
Theyl determinel relationshipsl betweenl variables.
Theyl requirel anl unrestrictedl range.
Statisticall softwarel cannotl bel usedl tol performl them
