average forecast error in a sentence

• If we observe the average forecast error for a time-series of forecasts for the same product or phenomenon, then we call this a calendar forecast error or time-series forecast error.
• The average forecast error for 24 hours was about 260 km ( 160 mi ), whereas for 48 hours, it was 415 km ( 255 mi ); both values were less than the seasonal average.
• The Hurricane Center had its smallest average forecast errors ever for the 1 1 / 2-, two-and three-day forecasts last year, and the general margin of error is improving by 1 percent to 2 percent a year, Mayfield said.
• It's difficult to see average forecast error in a sentence .