+30 A die is rolled 9 times. Find the probability of rolling exactly 1 six.
+129850 Try this
C(9,1) = 9
So we have
9 (1/6) = 9/6 = 3/2 = 1.5
So....we really have
1.5 * (5/6)^8 ≈ .3488
+220 Expression: 1/6*9*(5/6^8).
The expression above is to be evaluated to find the probability of rolling exactly one die.
Type it in to your calculator and you get a approximate total of ~34.89%.
There is a ~34.89% chance of rolling exactly one six when rolled 9 times.
~~Hypoteniusance
