Answer:
Read below.
Step-by-step explanation:
There are 12 marbles, 4 of them are red. The first draw is non-red, probability 8/12 = 2/3; the second is non-red, probability 7/11; the third is red, probability 4/10 = 2/5. The probability of all three is (2/3)(7/11)(2/5) =28/165 =0.169697…
Sorry if you don't understand
Answer: 2/27
Step-by-step explanation:
I just did this in class so I gotchu.
First you gottta find the total 4+2+3=9
There are 9 total marbles making 9 your denominator Out of those 9 marbles there are 3 blue marbles. And 2 yellow marbles.
There is a 3/9 chance of picking a blue marble. And a 2/9 chance of the yellow marble.
3/9 x ?
Once you’ve got that blue marble out of the bag you put it back which makes 9 still the total amount of marbles.
3/9x2/9=6/81 which is simplified to 2/27
If your confused on something that I did just let me know :)
