Question

Q and R are independent events. If P(Q)=1/8 and P(R)=2/5 find P(Q and R).

(a). 21/40
(b). 19/40
(c). 1/20

Answer 1

for independent events,
\(
\Large P(A \cap B) = P(A)\times P(B)\)

Answer 2

so i multiply 1/8 and 2/5?

Answer 3

thats right! :)

Answer 4

so what did u get ? :)

Answer 5

Which gives me 21/40?
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