Multiple Choice/ Single Answer Questions. No need to show your work. For some questions, there may be more than one correct answer. You have to select all that applies.

a.Which one is subjectively most interesting?

i.An association rule that has reasonably high support but low confidence.

ii.A rule that has low support and low confidence.

iii.A rule that has low support and high confidence.

b.Suppose the confidence of the rules A B and B C are larger than some threshold, minconf . Is it possible that A C has a confidence less than minconf ?

i.Yes

ii.No

c.The training error on an unpruned decision tree is 80% while the error rate on each bootstrap sample is close to 60%.What is the error estimate of 0.632 bootstrap?

d.Chose the incorrect one - A continuous attribute could be discretized using.

i.Binning

ii.Clustering

iii.Rule discovery

e.Which one has the highest entropy?

i.A fair coin

ii.An unfair coin

iii.A fair dice

f.Based on your answer to question (e), write down the entropy values to corroborate your answer.