In exponential smoothening method, which one of the following is true?

The actual sales of a product in different months of a particular year are given below:

The forecast of the sales, using the 4-month moving average method, for the month of February is ____________.

In simple exponential smoothing forecasting, to give higher weightage to recent demand information, the smoothing constant must be close to

Which of the following forecasting methods takes a fraction of forecast error into account for the next period forecast?