What is the probability of randomly selecting an odd number from the numbers 1-15?
There are 8 odd numbers between 1 and 15: 1, 3, 5, 7, 9, 11, 13, 15.
The probability of randomly selecting an odd number from this list is:
Number of odd numbers / Total number of numbers = 8/15
Therefore, the probability of randomly selecting an odd number from the numbers 1-15 is 8/15 or approximately 0.53 or 53%.
12 students have an equally likely chance of being selected in a drawing at school. Eight are 7th graders and four are 8th graders. What is the probability that an 8th grader will be selected?
There are a total of 12 students, 4 of which are 8th graders.
The probability of an 8th grader being selected is:
Number of 8th graders / Total number of students = 4/12 = 1/3
Therefore, the probability that an 8th grader will be selected is 1/3 or approximately 0.33 or 33%.
To find the probability of randomly selecting an odd number from the numbers 1-15, we first need to determine the number of favorable outcomes (odd numbers) and the total number of possible outcomes.
In this case, the favorable outcomes are the odd numbers from 1 to 15, which are 1, 3, 5, 7, 9, 11, 13, and 15. So there are 8 favorable outcomes.
The total number of possible outcomes is the total number of numbers from 1 to 15, which is 15.
To calculate the probability, we divide the number of favorable outcomes by the total number of possible outcomes:
Probability = Number of favorable outcomes / Total number of possible outcomes
Therefore, the probability of randomly selecting an odd number from the numbers 1-15 is:
Probability = 8 / 15 ≈ 0.5333 or 53.33%