Mina tosses two number cubes labeled 1 to 6. What is the probability that the sum is equal to 5? A. 1/36 B. 1/9 C.1/6 D.5/36
to make a sum of 5 , the two dice would be :
1-4 , 2-3, 3-2, or 4-1
so 4 ways
prob (sum of 5) = 4/36 = 1/9
1/9
It would be 1/36 because it may only have a chance to get the number 5 once so 6x6=36 and you only have a tiny chance theoretically to make the dice equal 5 when you roll it.
To calculate the probability of getting a sum of 5 when tossing two number cubes, we first need to determine the number of possible outcomes.
When rolling a number cube once, there are 6 possible outcomes: 1, 2, 3, 4, 5, or 6. Since Mina is tossing two number cubes, there will be a total of 6 x 6 = 36 possible outcomes.
Next, we need to determine the number of favorable outcomes, which are the outcomes where the sum of the two numbers is equal to 5.
The possible combinations that give a sum of 5 are: (1, 4), (2, 3), (3, 2), and (4, 1). So, there are 4 favorable outcomes.
Finally, we can calculate the probability of getting a sum of 5 by dividing the number of favorable outcomes by the total number of possible outcomes:
Probability = Number of favorable outcomes / Total number of possible outcomes
Probability = 4 / 36
Probability = 1 / 9
Therefore, the correct answer is B. 1/9