# 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 pr

Algebra ->  Algebra  -> Probability-and-statistics -> 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 pr      Log On

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 Click here to see ALL problems on Probability-and-statistics Question 325261: 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(57214)   (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? --- 1st red: 4/8 2nd red: 3/7 --- P(red/red) = (4/8)*(3/7) = 3/14 ----------------------------------------- b What is the probability of selecting a green block, replacing it, then selecting a red block? --- P(green/red) = (1/2)(1/2) = 1/4 =================================== Cheers, Stan H. ================