Posted by Diana on Thursday, February 28, 2013 at 10:46pm.
You randomly draw a marble from a bag of 320 marbles. You record its color and replace it. Use the results shown in the table to predict the number of marbles in the bag that are the given color. Blue:10 Green:8 Purple:2

Matt  PsyDAG, Friday, March 1, 2013 at 12:26pm
If this is supposed to indicate the number of marbles directly, then out of every 20, 10 are blue, 8 are green and 2 are purple.
320/20 = 16
Multiply each value by 16.
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