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Projections of Education Statistics to 2021

NCES 2013-008
January 2013


Table A-4.  Example of constructing mean absolute percentage errors, part 2
Source Lead time (years)
1 2 3 4
  Absolute value of percentage difference between actual and projected values
Projections of Education Statistics to 2017 0.7 1.1 1.4
Projections of Education Statistics to 2018 0.4 0.7 0.8 1.1
Projections of Education Statistics to 2019 # 0.1 0.2
Projections of Education Statistics to 2020 0.2 0.4
         
  Mean absolute percentage error
Example 0.2 0.5 0.7 1.3
† Not applicable.
# Rounds to zero.
NOTE: The mean absolute percentage errors presented on this table are for illustrative purpose only. Calculations are based on unrounded numbers.
SOURCE: U.S. Department of Education, National Center for Education Statistics, Common Core of Data (CCD), “State Nonfiscal Survey of Public Elementary/Secondary Education,” 2005–06 through 2010–11; and Projections of Education Statistics, various editions. (This exhibit was prepared March 2012.)

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