# Question #05ff8

##### 1 Answer

Sep 27, 2015

Muhammad K. - First find the probability that all 3 outcomes are the same.

#### Explanation:

P(all heads) =

P(all tails) =

P(all outcomes the same) =

**Geometric Distribution** :

(a) P(exactly three rounds of flips are needed for the 1st success) =

(b) P(more than 4 flips are needed for the 1st success) =

=

Hope that helped