LING / C SC 439/539
Written Assignment #4
Submission instructions: put answers on a sheet of paper (may be typed or hand
written) and turn in
during class or place under the door of Douglass 305, on or before the due date.
may not be turned in through e
Chad is sad from his recent divorce. He decides to call in sick and spend the day
watching videos of his wedding ceremony. He has 3 boxes of choc
lates. Box #1 has 20 plain
chocolates and 10 with nuts; box #2 has 10 plain and 10 with nuts; box #3 has 30 pieces with nuts.
Chad cares so little about life that, even though he doesn't like nuts, he is randomly grabbing
chocolates from the three boxes
one at a time
and eating the
m. The three boxes have different
sizes, so the chances of Chad selecting from box #1, #2, and #3 are 2/9, 3/9, and 4/9, respectively. If
chocolate with nuts, what is the probability that he picked it out of box #2?
Solve using Bayes r
Inference in Bayesian networks
What is the probability that there was neither a burglary nor an earthquake, given that John didn’t
call? Calculate the answer through
marginalization of joint probabilities.
Hint: the answer contains the digits 3 a
at these positions: