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Question: a monandndashsat work timetable schedules onehour timeslots between 9am to...

Question details

A Mon–Sat work timetable schedules one-hour timeslots between 9AM to 5PM; 12 noon is excluded: a total of 42 possible timeslots, as shown in the table. We select 4 (four) timeslots at random, and ignore the order in which they are selected.

(a) How many different selections are possible?

C(42,4) = 111930 selections

(b) How many selections consist of 4 continuous hours?

C(6,1) = 6 selections

(c) How many of the possible selections contain exactly one Saturday slot? Explain your reasoning.

(d) How many of the possible selections contain at least one Saturday slot? Explain your reasoning

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