Forum for the GRE subject test in mathematics.
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yoyobarn
- Posts: 80
- Joined: Sun Dec 19, 2010 7:01 am
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by yoyobarn » Sat Jan 28, 2012 7:48 am
Hi, recently I noticed that recent GRE practice papers seem to have more "D"s.
Is it statistically significant? If yes, I might consider "guessing D when in doubt"..
Expected mean of each option=np=66*1/5=13.2
Variance=npq=66*1/5*4/5=10.56
Standard dev.=3.25
GR0568:
"A"---11
"B"---14
"C"---11
"D"---16
"E"---14
GR9768:
"A"---11
"B"---13
"C"---13
"D"---16
"E"---13
GR9367:
"D"---17
GR8767 (anomaly):
"D"---13
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bloopbeep
- Posts: 10
- Joined: Sat Dec 10, 2011 11:05 am
Post
by bloopbeep » Sun Jan 29, 2012 7:42 pm
Your time would be better spent studying.
