Question

Suppose Q and R are independent events. Find P (Q and R)

P(Q)=2/5, P(R)=3/7

Answer 1

if they are independent, then
\[P(Q\cap R)=P(Q)\times P(R)\]

Answer 2

in other words, multiply the two probabilities

Answer 3

I tried and keep getting .92

Answer 4

\[\frac{2}{5} \times \frac{3}{7} \ne 0.92\]...

Answer 5

\[\frac{2}{5}\times \frac{3}{7}=\frac{6}{35}\]

Answer 6

Oh, thank you :D Would you mind helping me on one more problem?

Answer 7

@satellite73

Answer 8

P(Q)=1/3, P(R)=1/10