#$3$ A moving average can be used to smooth which of the following? A$)$ cyclical variation B$)$ seasonal variation C$)$ irregular variation D$)$ All responses are correct Submit Answer format: Text #$4$ Using the data below, what is the weighted moving average forecast for the $4$th week? The weights are $20\mathrm{.}30,\mathrm{.}50($oldest period to most recent period$)$ Week Time Series Value $111\mathrm{.}00223\mathrm{.}0038\mathrm{.}0047\mathrm{.}00$ Submit