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a conference room holds meetings. the owner knows that the duration of these meetings is uniformly...

a conference room holds meetings. the owner knows that the duration of these meetings is uniformly distributed from 30-90 mins.

a) what is the liklihood that a meeting will last between 60 and 80 mintues?

b)what is the standard deviation of the duration of the meetings?

c) a meeting has been scheduled in a room at 3pm. when should the next meeting be scheduled so that there is no more than a 10% chance that the participants for the second meering have to wait for the previosu meeting to get over?

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