SOLUTION: A bag contains 22 orange and 18 green balls. What is the probability of drawing a green ball, then an orange one, if the first ball is replaced before drawing the second? If the fi

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Question 857066: A bag contains 22 orange and 18 green balls. What is the probability of drawing a green ball, then an orange one, if the first ball is replaced before drawing the second? If the first ball is not replaced before drawing the second?
Found 2 solutions by Fombitz, ewatrrr:
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
With replacement,
P%28G%2CO%29=%2818%2F40%29%2822%2F40%29=396%2F1600=99%2F400
Without replacement,
P%28G%2CO%29=%2818%2F40%29%2822%2F39%29=396%2F1560=33%2F130

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

 40 balls: 22 orange and 18 green 

with replacement P(green then orange) = %2818%2F40%29%2822%2F40%29

w/o replacement P(green then orange) = %2818%2F40%29%2822%2F39%29