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**ble** **Question**: A fair coin is tossed once and a fair die is rolled once. **Calculate the probability of observing that the coin is heads or dice is six**,

Let A be the event that the coin toss results in a head.

Let B be the event that the roll of the die results in 6.

P(A∪B)=P(A)+P(B)−P(A∩B)

And since A and B are independent,

P(A and B)=P(A)⋅P(B)

P(A or B)= 1/2 + 1/6 − 1/2 x 1/6

=2/3−1/12

=7/12

The solution requires formal calculation using mathematical notation and the derivation of every step in the calculation. Since its a **10 mark** question, I believe that my solution is not enough to get the full marks in an exam. Is there another approach that I can take to get a better answer? Should I use the Bayes theorem formula for this question?