SOLUTION: Good afternoon everyone, I dont know where to start with the following problems, if any one can help me I would really appreciated, Thank you in advance!!! 1)If a pair of dice i

Algebra ->  Probability-and-statistics -> SOLUTION: Good afternoon everyone, I dont know where to start with the following problems, if any one can help me I would really appreciated, Thank you in advance!!! 1)If a pair of dice i      Log On


   

Question 870770: Good afternoon everyone, I dont know where to start with the following problems, if any one can help me I would really appreciated, Thank you in advance!!!
1)If a pair of dice is rolled simultaneously, find:
a) the probability that the sum of the outcomes is a multiple of 6
b) the probability that the product of the outcomes is a number greater than 15


Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

P(sum is a multiple of six) = 6/36 = 1/6   (6 and 12)

___1_2_3__4__5__6

1|_2_3_4__5__6__7

2|_3_4_5__6__7__8

3|_4_5_6__7__8__9

4|_5_6_7__8__9_10

5|_6_7_8__9_10_11

6|_7_8_9_10_11_12

P(product is >15) = count/36

 __1__2__3__4__5__6

1|_1__2__3__4__5__6

2|_2__4__6__8_10_12

3|_3__6__9_12_15_18

4|_4__8_12_16_20_24

5|_5__10_15_20_25_30

6|_6__12_18_24_30_36