Stat133 Midterm 2

# Stat133 Midterm 2 - STAT 133 MIDTERM 2 WINTER 2007 NAME...

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STAT 133 MIDTERM 2 WINTER 2007 NAME_______________________ GROUP NUMBER_____________ NAME OF MY TA: (CIRCLE ONE) CHAORAN YE JARED SCHUETTER HYEJUNG MOON DEEDRA NICOLET LORI HOFFMAN JUHEE LEE JINGYUAN YANG ADAM LUNDGREN THIS EXAM CONTAINS 35 QUESTIONS. TOTAL POINTS POSSIBLE = 200. NOTE: WE CAN NO LONGER ANSWER QUESTIONS DURING OUR EXAMS. ANSWER THE QUESTIONS TO THE BEST OF YOUR ABILITY. IF YOU SUSPECT AN ERROR PLEASE MAKE A NOTE ON THE EXAM AND WE WILL LOOK AT IT WHILE GRADING. ACADEMIC INTEGRITY STATEMENT I am seated in the designated building, room and row as listed on the exam seating chart. All of the work shown on this exam is my own; I will not look at anyone else’s paper or collaborate with any student in any way during this exam. I will keep my answers covered during the exam and will not knowingly expose them to anyone. I understand that no additional materials are to be used on this exam other than the exam itself and a calculator (no review sheets, notes, books, etc). I understand that academic misconduct during an exam at The Ohio State University is very serious and can result in my failing this class (or worse.) Signature_______________________________ 1

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STAT 133 MIDTERM 2 WINTER 2007 Stat 133 Formula Sheet - - = 2 ) ( 1 1 x x n s i - - - = y i x i s y y s x x n r 1 1 y = a + bx x y s s r b = x b y a - = = i i x p x μ x bx a b a + = + y x y x + = + - = i x i x p x 2 2 ) ( σ x bx a b 2 2 2 = + y x y x y x ρσ 2 2 2 2 + + = + y x y x y x 2 2 2 2 - + = - Binomial Distribution k n k p p k n k X P - - = = ) 1 ( ) ( Binomial Distribution Mean = np Variance = np(1-p) - = x z n x z 0 - = n z x × ± * 2 * = m z n Probability Rules P(A or B) = P(A)+P(B)-P(A and B) P(A c )=1-P(A) ) ( ) ( ) | ( B P B and A P B A P = P(A|B)=P(A) if and only if A and B are independent P(A and B) = P(A)P(B|A) = P(B)P(A|B) = P(B and A) P(A c |B) + P(A|B) = 1 Bayes Theorem: ) ( ) | ( ) ( ) | ( ) ( ) | ( ) | ( c c A P A B P A P A B P A P A B P B A P + = 2
STAT 133 MIDTERM 2 WINTER 2007 T/F AND MULTIPLE CHOICE PROBLEMS (25 problems at 4 points each) CHOOSE THE BEST ANSWER. RECORD YOUR ANSWERS ON THE ANSWER SHEET ON THE LAST PAGE.

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• Winter '07
• rumseyjohnson
• Probability distribution, Probability theory, probability density function, B., B B B B B B B B B B B B B B B B B B B B B B B B

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Stat133 Midterm 2 - STAT 133 MIDTERM 2 WINTER 2007 NAME...

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