Answer:
6/21
Step-by-step explanation:
1. First, check all the possible combinations for a pair of dice:
1-1
1-2 2-2
1-3 2-3 3-3
1-4 2-4 3-4 4-4
1-5 2-5 3-5 4-5 5-5
1-6 2-6 3-6 4-6 5-6 6-6
(Those are the numbers of the dice, separated by hyphons.)
2. Next, find out the products, since that is the info we need to go off of.
1
2 4
3 6 9
4 8 12 16
5 10 15 20 25
6 12 18 24 30 36
(those are all the products based on the same chart we saw above.)
3. Now, let's calculate the probability.
4. There are 6 numbers that will satisfy our needs. (prime or ending in 5)
There are 21 total.
6/21
If you need decimal form, there is a
0.2857 chance.
Hope this helped.
Answer:
[tex]\frac{11}{36}[/tex]
Step-by-step explanation:
To find the probability that the product is prime or ends in a 5, we need to look into the face value, the numbers that are prime when you multiply the face value are 6 and the numbers that end in a 5 are 5
Probability = required outcome / all possible outcome
In a probability, whenever you see the word 'or', you are to add
probability = 6/36 + 5/36 = 11/36
