11 students from a class of 15 scored perfect on the AP test. Only 33 perfect scores out of Millions.
Did these kids find a way to Kip Lipton the test? Could be a phenomenon but where there's smoke...
jamin wrote:
Let the aspiring actuary answer this.
Given that the chance of a randomly selected AP Micro Econ student getting a perfect score is 33/67782, the chance that 11 of 15 randomly selected AP Micro Econ students got a perfect score is
15! / (11! * 4!) * (33/67782) * (32/67781) * ... * (22/67771) * (67785/67770) * (67784/67769) * (67783/67768) * (67782/67767)
-- which I don't want to calculate, but I assure you it's low --
and this is if we assume independence.
fdgdghgfnjs wrote:
Why would you assume independence?
jamin wrote:
fdgdghgfnjs wrote:
Why would you assume independence?
That's why I underlined that fact. Obviously there's not independence because students in a given class might be extra motivated if that class is in a prep school or if the teacher offered some big prize to everyone who gets a perfect score.
jamin wrote:
Let the aspiring actuary answer this.
Given that the chance of a randomly selected AP Micro Econ student getting a perfect score is 33/67782, the chance that 11 of 15 randomly selected AP Micro Econ students got a perfect score is
15! / (11! * 4!) * (33/67782) * (32/67781) * ... * (22/67771) * (67785/67770) * (67784/67769) * (67783/67768) * (67782/67767)
-- which I don't want to calculate, but I assure you it's low --
and this is if we assume independence.
jamin wrote:
Let the aspiring actuary answer this.
Given that the chance of a randomly selected AP Micro Econ student getting a perfect score is 33/67782, the chance that 11 of 15 randomly selected AP Micro Econ students got a perfect score is
15! / (11! * 4!) * (33/67782) * (32/67781) * ... * (22/67771) * (67785/67770) * (67784/67769) * (67783/67768) * (67782/67767)
-- which I don't want to calculate, but I assure you it's low --
and this is if we assume independence.
No problema wrote:
Memorizaing doesn't help in college though.
fdgdghgfnjs wrote:
jamin wrote:
fdgdghgfnjs wrote:
Why would you assume independence?
That's why I underlined that fact. Obviously there's not independence because students in a given class might be extra motivated if that class is in a prep school or if the teacher offered some big prize to everyone who gets a perfect score.
So then why post the(incorrect) math?
rojo wrote:
The article isn't very well-written.
Reading it closely, I think all 11 of the students in the class got a 5 out of 5. That's what they are calling a 'perfect' score.
They didn't all get every question correct as the article goes out of its way to mention the one student who got all the questions right and differentiate that person.
-Rojo
My senior year AP class had everyone get a 5 out of 5 on the BC calculus exam. We had 10-15 kids in the class.
Our teacher did consult for the AP so she knew what to teach us but there was no cheating involved.
rojo wrote:
The article isn't very well-written.
Reading it closely, I think all 11 of the students in the class got a 5 out of 5. That's what they are calling a 'perfect' score.
They didn't all get every question correct as the article goes out of its way to mention the one student who got all the questions right and differentiate that person.
-Rojo
My senior year AP class had everyone get a 5 out of 5 on the BC calculus exam. We had 10-15 kids in the class.
Our teacher did consult for the AP so she knew what to teach us but there was no cheating involved.