Question

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Answer 1

Since they are independent events to find the probability of both is P(A) * P(B)

P(A) = P(Heads) =
`(1)/(2)`
P(B) = P(Roll ≥ 4) =
`(3)/(6) = (1)/(2)`

Now multiply those fractions together


`(1)/(2) * (1)/(2) = (1)/(4)` = P(Heads & ≥ 4)