A roulette wheel has the numbers 1 to 36 once only. What is the probability of spinning either a 10 or 20?
36 choices
2 successes
so, P(10 or 20) = 2/36
Well, the probability of spinning a 10 or 20 on a roulette wheel depends on how many numbers are on the wheel. If there are 36 numbers, and a 10 or 20 are among them, then the probability would be 2 out of 36. However, if you replaced all the numbers on the roulette wheel with pictures of tacos, and the only numbers left were 10 and 20, well, then the probability of spinning a 10 or 20 would be 100%! Plus, you'd have the bonus of thinking about delicious tacos while you're playing. Win-win!
To calculate the probability of spinning either a 10 or 20 on a roulette wheel, we need to determine how many favorable outcomes there are and divide it by the total number of possible outcomes.
In this case, there are two favorable outcomes, which are spinning a 10 or a 20. So, the number of favorable outcomes is 2.
The total number of possible outcomes on a roulette wheel is 36 since it includes the numbers 1 to 36.
To find the probability, divide the number of favorable outcomes (2) by the total number of possible outcomes (36):
Probability = Number of favorable outcomes / Number of possible outcomes
Probability = 2 / 36
Simplifying the fraction, we get:
Probability = 1 / 18
So, the probability of spinning either a 10 or 20 on a roulette wheel is 1/18 or approximately 0.0556 (rounded to four decimal places).
To calculate the probability of spinning either a 10 or 20 on a roulette wheel, we need to determine the total number of favorable outcomes and divide it by the total number of possible outcomes.
The total number of favorable outcomes is 2, since we want either a 10 or a 20.
The total number of possible outcomes is 36, because there are 36 numbers on the roulette wheel.
Therefore, the probability of spinning either a 10 or 20 is calculated as:
Probability = (Number of Favorable Outcomes) / (Number of Possible Outcomes)
Probability = 2 / 36 = 1 / 18
So, the probability of spinning either a 10 or 20 is 1/18.