since you are replacing the marble each time , and since most marbles don't have any memory that I know of,
the prob is 19/38 or 1/2
A box contains 19 red marbles and 19 green marbles.
Sampling at random from the box five times with replacement, you have drawn a red marble all five times. What is the probability of drawing a red marble the sixth time?
1 answer
1 answer