If there are 8 red disks numbered 1 through 8, and 6 yellow disks numbered 9 through 14 placed in a box. Find the probability of selecting a red disk numbered 3.
How many discs are there in total?
how many red discs have a 3 on them?
1/14
correct
To find the probability of selecting a red disk numbered 3, we need to know the total number of disks and the number of red disks numbered 3.
The total number of disks is the sum of the number of red disks and the number of yellow disks. In this case, there are 8 red disks and 6 yellow disks, so the total number of disks is 8 + 6 = 14.
The number of red disks numbered 3 is 1, as there is only one red disk numbered 3.
Now, we can calculate the probability by dividing the number of favorable outcomes (selecting a red disk numbered 3) by the total number of possible outcomes (total number of disks).
Probability = Number of favorable outcomes / Total number of possible outcomes
In this case, the probability of selecting a red disk numbered 3 is 1 (number of red disks numbered 3) divided by 14 (total number of disks):
Probability = 1/14
So, the probability of selecting a red disk numbered 3 is 1/14.