Using a sixteen-sided number cube, what is the probability that you will roll an even number or an odd prime number? The number 1 isn't an odd prime. Round to three decimals.
(1 point)
0.188
0.813
0.219
0.156
To find the probability, we need to count the favorable outcomes and total outcomes.
Favorable outcomes:
- Even numbers: 2, 4, 6, 8, 10, 12, 14, 16 (total of 8 even numbers)
- Odd prime numbers: 3, 5, 7, 11, 13 (total of 5 odd prime numbers)
Total outcomes: 16 (since it's a sixteen-sided number cube)
The total number of favorable outcomes is 8 (even numbers) + 5 (odd prime numbers) = 13.
Probability = Favorable outcomes / Total outcomes
Probability = 13 / 16 = 0.813
Therefore, the probability that you will roll an even number or an odd prime number is 0.813. Rounded to three decimals, it is 0.813.
So the answer is:
0.813