What is the probability of rolling a number less than 5 on a toss of a twelve-sided die?
4/12 = 1/3
To determine the probability of rolling a number less than 5 on a twelve-sided die, we need to know the number of favorable outcomes and the total number of possible outcomes.
Step 1: Identify the favorable outcomes:
A twelve-sided die has numbers 1 to 12. In this case, the favorable outcomes are the numbers less than 5, which are 1, 2, 3, and 4.
Step 2: Count the total number of possible outcomes:
Since the die has 12 sides, the total number of possible outcomes is 12.
Step 3: Calculate the probability:
To calculate the probability, divide the number of favorable outcomes by the total number of possible outcomes.
Probability = Number of Favorable Outcomes / Total Number of Possible Outcomes
In this case, the probability of rolling a number less than 5 on a twelve-sided die is:
Probability = 4 (number of favorable outcomes) / 12 (number of possible outcomes) = 1/3 ≈ 0.3333 (rounded to four decimal places).
Therefore, the probability of rolling a number less than 5 on a toss of a twelve-sided die is approximately 0.3333, or 1/3.