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An experiment consists of first rolling a die and then tossing a coin: a. How many...

An experiment consists of first rolling a die and then tossing a coin:

a. How many elements are there in the sample space?

b. Let A be the event that either a 1, 2, 3 or 4 is rolled first, followed by landing a tail on the coin toss.
P(A) =  

Present your answer as a decimal rounded to four decimal places.

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