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Question (6) [2 Marks] Note: Do not use R, do the calculations by hand. Three times...

Question (6) [2 Marks] Note: Do not use R, do the calculations by hand.

Three times per day, a student flips a fair coin, and if it is Heads they drink a coffee. We say a day is a "no-coffee" day if they do not drink any coffees that day.

(a) [1 point] What is the probability that a day is a "no-coffee" day?


(b) [1 point] What is the probability that in a week (7 days), there are 2 "nocoffee" days?

Math   Statistics-And-Probability   
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