SOLUTION: A pair of 8 sided dice have sides numbered 1 through 8. Each side has the same probability of landing face up. Find the probability that the product of the 2 numbers on the sides
Algebra.Com
Question 39272: A pair of 8 sided dice have sides numbered 1 through 8. Each side has the same probability of landing face up. Find the probability that the product of the 2 numbers on the sides that land face up exceeds 36.
Found 2 solutions by Nate, josmiceli:
Answer by Nate(3500) (Show Source): You can put this solution on YOUR website!
Number of Ways to Get More than 36:
5:8
6:7
6:8
7:6
7:7
7:8
8:5
8:6
8:7
8:8
There are eight different ways to achieve this:
10/(8*8)
(5/32)
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
I get 10/64 or 5/32 for an answer.
The combinations of die numbers that ass up to greater than 36 are:
die 1: 7
die 2: 6 or 7 or 8
-----------------------
die 1: 8
die 2: 5 or 6 or 7 or 8
------------------------
die 1: 6
die 2: 7 or 8
-----------------------
die 1: 5
die 2: 8
-----------------------
That covers all the possibilities
Now add them up. Whenever you want the probability, P of a OR b,
P = a + b.
There are 10 ways to get side 1 + side 2 greater than 36
RELATED QUESTIONS
Two six sided dice, with sides numbered 1 through 6 are rolled. If the dice are rolled... (answered by alicealc,amoresroy)
A twelve-sided die has sides numbered 1 through 12. The die is rolled once. Find each... (answered by Alan3354)
Hi,
Pretty sure this is a conditional probability problem or Bayes' Formula problem;... (answered by Targetweek)
a pair of 24-sided dice are rolled (the sides are numbered 1-24).
What is the... (answered by Fombitz)
Samuel has two 4-sides dice. the sides of each die have the numbers 1,2,3,4. because the... (answered by MathLover1,ikleyn,greenestamps)
A coin is tossed and a single 6-sided dice is rolled. Find the probability of landing on... (answered by reviewermath)
I need to find the classic probability of rolling a 1 (or any number) out of 8 dice. I'm... (answered by stanbon)
Q.1 A biased die is rolled 500 times and the number 6 came up 83 times.
a) What is the... (answered by ikleyn,Boreal)
Two fair sided dice (numbered 1-6) are rolled at the same time. What is the probability... (answered by Fombitz,richard1234)