A forecast is a statement about the future value of a variable, such as demand. That is$,$ forecasts are predictions about the future. The better those predictions, the more informed decisions can be$.$

Many different kinds of forecasting techniques are available, and no single technique works best in every situation. Different forecasting methods require different levels of background sophistication in the personnel involved in the methods' creation.

Period $1$ had actual sales of $875.$ Period $2$ had actual sales of $910,$ and Period $3$ had actual sales of $915.$ What is the three$-$period moving average forecast?

Multiple Choice

$875$

$910$

$915$

$2,700$

$900$