02-16-2012, 08:34 AM
http://prayatna.typepad.com/education/
Admission into post-graduate teachers training
All the entrance exam writers are by definition at least middle class
Assume cut off = 115 IQ
Upper caste pass = 14%,
Implied IQ = 115 - 15 = 100
OBC caste pass = 7 %
Implied IQ = 115 - 22 = 93
SC pass = 4%
Implied IQ = 115 - 26 = 89
ST pass = 2%
Implied IQ = 115 - 30 = 85
FC = 25% of population
OBC = 50%
SC = 15%
ST = 10%
Average IQ in future = 0.25 x 100 + 0.50 x 93 + 0.15 x 89 + 0.10 x 85 = 93 IQ
Admission into post-graduate teachers training
All the entrance exam writers are by definition at least middle class
Assume cut off = 115 IQ
Upper caste pass = 14%,
Implied IQ = 115 - 15 = 100
OBC caste pass = 7 %
Implied IQ = 115 - 22 = 93
SC pass = 4%
Implied IQ = 115 - 26 = 89
ST pass = 2%
Implied IQ = 115 - 30 = 85
FC = 25% of population
OBC = 50%
SC = 15%
ST = 10%
Average IQ in future = 0.25 x 100 + 0.50 x 93 + 0.15 x 89 + 0.10 x 85 = 93 IQ