I'm trying to do the following probability question involving, I think, the ''amended'' multiplication rule:
A Jar contains 3 red and 5 black balls. What is the probability of drawing 2 red balls simultaneously ?
I used the formula - $P(A \cap B) = P(A)\cdot P(B\mid A)$
I.E. P(Red ball and then a Red ball) = P(Red)$\cdot$P(Red given the first was Red)
$=\frac 3 8 \cdot \frac 2 7$ ?