SOLUTION: There are four green blocks and four red blocks in a bag.
a) What is the probability of selecting a red block, keeping it, then selecting
another red block?
b) What is the p
Algebra.Com
Question 327354: There are four green blocks and four red blocks in a bag.
a) What is the probability of selecting a red block, keeping it, then selecting
another red block?
b) What is the probability of selecting a green block, replacing it, then selecting a red block?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
There are four green blocks and four red blocks in a bag.
a) What is the probability of selecting a red block, keeping it, then selecting
another red block?
P(red and red) = P(red)(P(red|red) = (4/8)(3/7) = 12/56 = 6/28
----------------------------------
b) What is the probability of selecting a green block, replacing it, then selecting a red block?
P(green and red) = P(green)*P(red) = (4/8)(4/8) = 1/4
======================
Cheers,
Stan H.
RELATED QUESTIONS
There are four green blocks and four red blocks in a bag.
a What is the probability of (answered by stanbon)
There are four green blocks and four red blocks in a bag. Two blocks are selected at... (answered by stanbon)
There are 4 green blocks and 3 red blocks in a bag. What’s the probability of selecting (answered by Edwin McCravy)
There are 4 green blocks and 3 red blocks in a bag. What’s the probability of selecting (answered by ikleyn)
A bag contains only red blocks, white blocks, and black blocks. The probability
of... (answered by Fombitz)
Sam has a bucket of blocks. He has 3 yellow blocks, 10 blue blocks, 6 green blocks, 8 red (answered by stanbon,ewatrrr,bucky)
A box contains 6 blocks, identical except for color. The colors are two red, two white,... (answered by oscargut)
A block is chosen at random from a bag containing 6 white blocks, 4 black blocks, and 12... (answered by stanbon)
A bag contains yellow and red blocks, there are 4 more red blocks than yellow. When... (answered by ilana)