Which of these is NOT a time series?

A city's rainfall each month for five yearsCorrect answerYour answerThe marks of 40 students in one testCorrect answerYour answerA company's yearly profits from 2015 to 2025Correct answerYour answerThe price of gold on each day of a monthCorrect answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer B

Correct answer: B

A time series records one quantity at successive points of time.
The test marks are 40 different students at one moment, not one quantity over time.

Concept: Recognising a time series
Typical timeTypical: 60 s
Your timeYours: —

The rule this testsWhat a time series is

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Which of these is NOT a time series?

Explanation