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25 January, 11:20

A bag contains 6 red marbles, 2 white marbles, and 1 gray marble. you randomly pick out a marble, record its color, and put it back in the bag. you repeat this process 45 times. how many white or gray marbles do you expect to get

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  1. 25 January, 12:56
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    Since gray and white make up 1/3 of the bag, (2+1+6=9; 2+1=3; 3/9=1/3) then then the answer would be 1/3 of 45, which is 15
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Home » Mathematics » A bag contains 6 red marbles, 2 white marbles, and 1 gray marble. you randomly pick out a marble, record its color, and put it back in the bag. you repeat this process 45 times. how many white or gray marbles do you expect to get
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