+1 862 207 3288 It is almost impossible to obtain in exactly right forecast every time. This is due to many factors, which affect the trend in data. It is difficult to capture the exact interrelation of these influencing factors. Therefore, some error in forecasted value and actual value is quite common.
Sometimes, it is important to know if the forecaster (a forecasting technique) is unbiased or not. An unbiased model should overestimate or underestimate the forecast in almost equal ratio.
