Exercise

Random or not random?

Some time series exhibit predictability when strong periodic or seasonal patterns are present. Other time series exhibit predictability when positive autocorrelation - or correlation among neighboring observations - induces what appear as short-term trends.

Examine the time series plots on the right. Which pair of time series do NOT appear predictable?

Instructions

50 XP

Possible answers

A and C

B and E

D and F

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Instructions

Possible answers

Exercise