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A restaurant employs 9 people. 2 bartenders, 3 waiters and 4 work in the kitchen.
A restaurant employs 9 people. 2 bartenders, 3 waiters and 4 work in the kitchen. It has been observed that
on any day the probability of an employee to call in sick is 2% for the bartenders, 3% for the waiters and 1% for
the kitchen staff.
Calculate:
1 the probability of all bartenders coming to work on a random day.
2 the probability of no more than one employee missing from work on a random day.
3 the average number of the employees coming to work.
4 If on one day exactly one employee has called in sick, the probability he is from the kitchen staff.
