A shop's sales fall for one week because of a sudden transport strike. Which component of a time series is this?

Secular trendCorrect answerYour answerSeasonal variationCorrect answerYour answerIrregular variationCorrect answerYour answerCyclical variationCorrect answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer C

Correct answer: C

A sudden, unpredictable one-off change is irregular variation.
So this is irregular variation.

Concept: Irregular variation
Typical timeTypical: 60 s
Your timeYours: —

The rule this testsComponents of a time series

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A shop's sales fall for one week because of a sudden transport strike. Which component of a time series is this?

Explanation