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

Question

Katrina Rush

Mathematics

20 July, 02:21

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

+4

Answers (1)

Know the Answer?

Tessa Harris · Answer 1

Answer: 1/20

To find P (Q and R), you have to multiply P (Q) by P (R) to get the probability that both events will occur. P (Q) = 1/8, and P (R) = 2/5, so when multiplied together, you get 2/40. This simplifies to 1/20, meaning P (Q and R) = 1/20.