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Unformatted text preview: rces department of a company is organising activities for their staﬀ on the work life balance
day. They proposed 5 activities, of which 3 will be done in the afternoon and the remaining 2 will be carried
out in the evening. How many possible arrangements can be made?
4. In a certain game, a fair die is rolled and a player gains 21 points if the die shows a “6.” If the die does not
show a “6,” the player loses 3 points. If the die were to be rolled 100 times, what would be the expected total
gain or loss for the player?
5. In a survey, it is found that 85% of university students possess credit cards. If 10 stu...
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This note was uploaded on 08/26/2013 for the course STAT 0302 taught by Professor Guo during the Spring '12 term at HKU.
 Spring '12
 guo
 Statistics, Variance

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