The confidence interval defines the range above and below a forecasted value where the value has some probability of occurring. For example, a confidence interval of 10% and 90% gives two points for each forecasted value. The lower point represents the 10th percentile. The higher point represents the 90th percentile. There is an 80% chance the predicted value will fall within this range. The farther out the forecast is, the larger this range is.
To select a confidence interval, select from the