Question
A pair of dice is thrown 6 times. If getting a total of 9 is considered a success, what is the probability of at least 5 successes?
Solution
A pair of dice is thrown. Therefore various outcomes are
|
11 |
12 |
13 |
14 |
15 |
16 |
|
21 |
22 |
23 |
24 |
25 |
26 |
|
31 |
32 |
33 |
34 |
35 |
36 |
|
41 |
42 |
43 |
44 |
45 |
46 |
|
51 |
52 |
53 |
54 |
55 |
56 |
|
61 |
62 |
63 |
64 |
65 |
66 |
∴ total number of outcomes = 36
Favorable outcomes are 36, 45, 54 and 63.
∴ number of favorable outcomes = 4
