Statistics 13B, Fall 2014, Midterm I, October 24, 4:10pm to 4:55pm, Version B
Instructions:
(c) 45%, or 22,500 voters interviewed who plan to
vote for her
45 minutes, closed book midterm
(d) 55%, or 27,500 voters interviewed who plan not to
vote for her
Statistics 13B, Fall 2014, Midterm III Version A
Instructions:
(d) all of the above
45 minutes, closed book midterm
(e) none of the above
answer: e
one letter-sized (double-sided) cheat-sheet, hand
held calculator and scrap paper are allowed
4. Suppose
Statistics 13B, Fall 2014, Midterm II Version A
Instructions:
answer: a
4. Given that s2 = 144, s2 = 36, r = 0.5, n = 17 the
x
y
slope of the regression line of y on x is:
45 minutes, closed book midterm
one letter-sized (double-sided) cheat-sheet, hand
Statistics 13B, Fall 2014, Practice Midterm III Version A
Instructions:
4. The z-score representing the rst quartile of the standard normal distribution is approximately (choose
the closest answer)
45 minutes, closed book midterm
(a) 0.67
one letter-siz
Statistics 13B, Fall 2014, Practice Midterm III Version A
Instructions:
3. Suppose Z is the standard normal random variable,
what is P(Z > 1.35)? (choose the closest answer)
45 minutes, closed book midterm
(a) 0.9115
one letter-sized (double-sided) chea
Statistics 13B, Fall 2014, Practice Midterm I Version A
Instructions:
4. Refer to Problem 3. The histogram of the weights of
trouts is
45 minutes, closed book midterm
(a) bimodal
one letter-sized (double-sided) cheat-sheet, hand
held calculator and scra
Statistics 13B, Fall 2014, Practice Midterm II Version A
Instructions:
4. Refer to Problem 3, what is the probability of getting
exactly three heads?
45 minutes, closed book midterm
(a)
one letter-sized (double-sided) cheat-sheet, hand
held calculator a
Statistics 13B, Fall 2014, Practice Midterm II Version A
Instructions:
5. A fair die is tossed twice and event A= the sum of
two tosses equals to 7, event B= the rst toss is 3.
Which of the following is true?
45 minutes, closed book midterm
one letter-s