A number cube is rolled what is P (3 or an even number)?
There are six possible outcomes when rolling a number cube: 1, 2, 3, 4, 5, or 6. Of these outcomes, three are even (2, 4, 6) and one is 3.
Therefore, the probability of rolling a 3 or an even number is:
P(3 or even) = P(3) + P(even) - P(3 and even)
P(3 or even) = 1/6 + 3/6 - 0
P(3 or even) = 4/6 or 2/3
So the probability of rolling a 3 or an even number is 2/3.
or just you have 4 winners out of 6 sides
4/6 or 2/3
Yes, that's correct. You can also look at it as having 4 favorable outcomes out of the total 6 possible outcomes, so the probability is 4/6 or 2/3.
To find the probability of rolling a 3 or an even number on a number cube, we need to first determine the total number of possible outcomes and the number of desired outcomes.
A number cube, also known as a standard six-sided die, has six sides numbered from 1 to 6. Out of those, three numbers are even (2, 4, and 6) and one number is 3.
Total number of possible outcomes = 6
Number of desired outcomes (3 or an even number) = 4 (2, 3, 4, and 6)
Now, we can calculate the probability by dividing the number of desired outcomes by the total number of outcomes:
P(3 or an even number) = Number of desired outcomes / Total number of outcomes
= 4 / 6
= 2 / 3
Therefore, the probability of rolling a 3 or an even number on a number cube is 2/3.