A bag contains 5 green marbles , 8 red marbles, 11 orange marbles, 7 brown marbles, and 12 blue marbles. You choose a marbles, replace it, and choose again. what is p(red then blue)
20/43
40/43
20/1849
96/1849
It’s 20/43
Took the test, above answer is a blatent lie. Not the answer.
Reiny and ratty girl are rats and liars, don't trust them
To find the probability of selecting a red marble followed by a blue marble when choosing with replacement, we need to determine the individual probabilities of each event and multiply them together.
Step 1: Determine the probability of selecting a red marble.
The bag contains a total of 5 + 8 + 11 + 7 + 12 = 43 marbles.
The number of red marbles is 8, so the probability of selecting a red marble on the first draw is 8/43.
Step 2: Determine the probability of selecting a blue marble.
After replacing the red marble, the bag still contains a total of 43 marbles.
The number of blue marbles is 12, so the probability of selecting a blue marble on the second draw is 12/43.
Step 3: Calculate the probability of both events occurring.
Since the events of choosing a red marble and then a blue marble are independent, we can multiply the probabilities together.
P(red then blue) = (8/43) * (12/43) = 96/1849.
The correct answer is 96/1849.
since you are replacing the marble, the second draw is not affected by anything you did before.
so Prob(red, then blue) = (8/43)(12/43)
= 96/1849
no reiny's answer was right anonymous. get ur facts straight
the answer is
9/20
reiny is wrong