Hi
I have a homework question which is, "You have a bag that contains 20 red and 22 green balls, what are chances that you will draw at least 8 red balls in 12 attempts". I first worked out the question for if there was an even amount of balls and got the answer 794/4096. I then applied the ratio of the certain amount of balls 20/42 times 794/4096 and got the answer of 0.1762. I'm pretty sure it's correct but I have a nagging suspicion that it is not.
Any answers much appreciated
I have a homework question which is, "You have a bag that contains 20 red and 22 green balls, what are chances that you will draw at least 8 red balls in 12 attempts". I first worked out the question for if there was an even amount of balls and got the answer 794/4096. I then applied the ratio of the certain amount of balls 20/42 times 794/4096 and got the answer of 0.1762. I'm pretty sure it's correct but I have a nagging suspicion that it is not.
Any answers much appreciated
