(a)[4]
Determine whether events $A$ and $B$ are independent or not.
(b)[3]
Work out $P(B \mid A')$.
Mathematics 9709 · AS & A Level · Probability
Probability — practice question
Jasmine rolls two ordinary fair 6-sided dice together and writes down the numbers on the top faces. The events $A$ and $B$ are defined as follows. $A$: The total of the two numbers is below $6$. $B$: The difference between the two numbers is at most $2$.
Worked solution & mark scheme
This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The correct probabilities are $P(A)=\frac{10}{36}$ and $P(B)=\frac{24}{36}$.” …
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