P(event A occurs) = 1/3
P (event A does not occur) = 2/3
P(event A will occur exactly 2 times)= 1/3*1/3*(2/3)^2 = 8/243
Now two experiments can occur in 5!/2!*3! ways as 2 events are similar and the rest are similar too.
= 8/243*10 = 80/243 (D)
P (event A does not occur) = 2/3
P(event A will occur exactly 2 times)= 1/3*1/3*(2/3)^2 = 8/243
Now two experiments can occur in 5!/2!*3! ways as 2 events are similar and the rest are similar too.
= 8/243*10 = 80/243 (D)
