Question

A die is rolled 6 times find the probability of exactly 4 occurrences of 2 A.0.39% B.2.6% C.0.47% D.0.8%

Answer 1

so it would be D? if i rounded it ?!

Answer 2

No absolutely not, I read this entirely wrong. I apologize lemme rework it.

Answer 3

the probability decreases with the more rolls...

so the problem is P(2) x P(2) x P(2) x P(2) x P(not2) x P(not 2)

Answer 4

6!/(4!2!) * (1/6)^4 * (5/6)^2
15 * 1/1296 * 25/36
0.00803 = 0.8%

Answer 5

or simply, not stealing credit from @nphuong but you can write it as 6C2 and the rest.