Statistics for The Big Band Theory characters

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Hint	Answer	% Correct
Waitress at the Cheesecake Factory and engaged to Leonard	Penny	100%
Studies theoretical physics researching quantum mechanis and string theory and has a IQ of 187	Sheldon	100%
Lives with his mother and is the only character without a Ph.D	Howard	99%
Astrophysicist and New Delhi born	Raj	99%
On and Off dating with Sheldon and studies neurobiology	Amy	98%
Roommates with Sheldon and studies experimental physics	Leonard	97%
Wife to Howard and studies microbiology	Bernadette	95%
Owner of the gangs favourite comic book store	Stuart	83%
Sister of Raj and ex-girlfriend of Leonard	Priya Koothrapali	67%
Mother of main character Sheldon	Mary Cooper	62%
Works at Caltech University and has a speech inpediment	Barry Kripke	59%
Arch-Nemesis of Sheldon and dated both Howard and Leonard	Leslie Winkle	58%
Ex-boyfriend of Penny and played really dumb	Zack	55%
Sister of main character Sheldon	Missy Cooper	54%
Mother of other main character Leonard	Beverly Hofstader	24%