Identify the formula used to calculate the root mean square

Last updated: 8/4/2023

Identify the formula used to calculate the root mean square error over a range of forecasted values if the actual value of the time series at time t and the forecast value for time t are denoted by At and Ft respectively O RMSE RMSE RMSE RMSE 71 t 1 71 f 1 IM A F f 1 71 VAT F A F0 72 72 72 At Ft 2