8. in time series, which of the following cannot be predicted? a) large increases in demand b) technological trends c) seasonal fluctuations d) random fluctuations e) large decreases in demand

Random fluctuations.

Explanation: Time series is a series that has all the points of time in a equal time order.So, there is usually organised and having equal gaps sequence. It can be imposed on many data  like real value data, discrete data,continuous data . But there is no space for the space of randomness so, random fluctuations are not predictable in it.Therefore the option (D) is the correct option.

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