I got this answer
You can substitute “y” back to check
Pretty sure its the 3rd one
Answer:
Step-by-step explanation:
Given : Suppose an urn has r red and w white marbles.
To find : Determine the probability that the marble is white ?
Solution :
Number of red marbles = r
Number of white marbles = w
Total number of marbles in an urn = r+w
Favorable outcome is getting the marble is white = w
So, Probability that the marble is white is given by
![\text{Probability}=\frac{\text{Favorable outcome}}{\text{Total outcome}}](https://tex.z-dn.net/?f=%5Ctext%7BProbability%7D%3D%5Cfrac%7B%5Ctext%7BFavorable%20outcome%7D%7D%7B%5Ctext%7BTotal%20outcome%7D%7D)
![\text{Probability}=\frac{w}{r+w}](https://tex.z-dn.net/?f=%5Ctext%7BProbability%7D%3D%5Cfrac%7Bw%7D%7Br%2Bw%7D)
Answer:
288
Step-by-step explanation: