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The amount of rainfall yesterday was 3 in. and the amount today is 2. You are...

The amount of rainfall yesterday was 3 in. and the amount today is 2.

You are to use simple exponential smoothing method (and the data from today and yesterday) to make forecasts.

Using a smoothing parameter alpha equals 0.5, what is your forecast for the amount of rainfall tomorrow? Round your answer to two decimal places.

math   Statistics-And-Probability   
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Answer #1

Forecasted value of amount of rainfall tomorrow

= 0.5 * 3 + (1 - 0.5) * 2

= 2.50

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