Answer: The answer is not correct
Step-by-step explanation: probability cannot be greater than 1
Answer:
probability of blue ball is 1/2
probability of yellow ball is 1/4
Step-by-step explanation:
We have given 6 blue balls 3 green balls and 3 yellow balls
Total number of balls are: 12

we have to find the probability of choosing a blue ball:

Then the ball was placed in the bag since, it is given replacement
Now, we have to find probability of choosing a yellow ball

The only way I can make sense of this is that the "al" are a mistype and you meant only:
A=1/2n
solve for n
let me know if i'm wrong!
but if I;m corret, you have to mupliply both sides by 2:
2A=

n
which ich: 2A=n
so the solution, after inverting the sides is:
n=2A.