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Final Grades. This Excel file contains final
exam and course grades identified by the last four digits of your ID.
There are also statistics on the final exam and class grade distribution.
There may be a delay in the posting of your grade to your transcript.
Graduating seniors, do not worry.
Solution to Second Midterm
Reading assigned 23 January: Section 2.7; Chapter 1, Sections 1-5
Reading assigned 28 January: Chapter 2, Sections 1-5
Homework #3, due 13 February:
Reading assigned 13 February: 2.6; start reading Chapter 3.
Homework #5, due 27 February:
Homework #6, not to be handed in. (Do these before your midterm.):
Homework #7, due 12 March:
Recent reading assignments: 4.1, 4.9, 5.4, 4.2.
Homework #9, due 2 April:
Homework #10, due 9 April.
Homework #11, due 16 April.
No late homeworks accepted.
Homework #12, not to be handed in:
Homework #13, due 30 April.
Homework #14, not to be handed in.
Additional problems on the material from 5 May
Homework #1, due 30 January
Solution
Homework #2, due 6 February
Solution
pp. 57-59, # 3, 7, 12, 18, 19, 33, 35, 37, 39, 41.
Solution
Actually, I think all of Ross's problems are great. If you would like more
practice, choose at random from problems 1 to 42.
Homework #4, due 20 February
Solution
pp. 111-116, # 1, 5, 9, 11, 12, 17, 29, 40.
p. 124, # 1, 2.
Solution
pp. 115-119, # 34, 35, 38, 39, 47, 49, 50, 55, 64, 65.
Solution
Look at p. 118, #54, but don't hand it in.
pp. 117-124, # 53, 57, 60, 66, 70, 79, 84, 90.
p. 125, # 11.
(A) Consider Joe and Martha again. In each part below, are the two
events independent?
a) Joe arrives after 12:15 and Martha arrives before 12:45.
b) Martha arrives after 12:30 and Joe and Martha arrive within
fifteen minutes of one another.
Solution
Homework #8, due 26 March.
Solution
p. 249, # 15, 16, 19, 21.
pp. 188ff., # 42, 43, 49, 74, 78, 79.
pp. 197ff., # 5, 30(a), 32.
(A) Determine p such that
P{X is even} = P{X is odd} when X has
geometric distribution with parameter p.
Solution
Solution
Solution
pp. 315ff., # 17, 20, 23
p. 319, #5
pp. 189ff., # 20, 28, 35, 38(a)
p. 198, #8
pp. 248ff., # 6, 14
pp. 408ff., # 6, 9, 26(a), 33(a)
p. 418, #1
Solution
Some of these are quite short. Here are other great problems which I
omitted to shorten the assignment:
pp. 190ff., # 21, 37
pp. 409ff., # 11, 19(b)
p. 420, # 10, 13(a)
No late homeworks accepted.
p. 192, #38(b)
p. 249, #18
pp. 410ff., # 19, 22, 31, 32, 75
pp. 423ff., # 41, 48, 49, 50, 54
Solution
pp. 194ff., # 54, 55, 60, 63
pp. 317ff., # 41, 43
pp. 413ff., # 48, 51, 64(a), 68
There are three coins in a bowl. One has probability 1/3 of coming
up heads; one has probability 3/5 of coming up heads, and the other
is a fair coin.
You choose a coin at random and flip until the first head appears. Let
X denote the unknown chance of heads for the chosen coin, and let
N denote the number of flips.
Determine EN and the conditional probability mass
function of X given N.
Solutions
pp. 249ff., # 20, 23, 28
p. 414, #57
pp. 457ff., # 6, 10, 15
Solutions