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OpenStudy (playgames1122):
A bag contains 45 marbles of various colors. Lena draws 48 times, each time replacing the marble before drawing again. She gets a total of 16 red marbles. Which is best prediction of how many red marbles are in the bag? A. 3 B. 13 C. 15 D. 16
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OpenStudy (welshfella):
she gets 16 red marbles from 48 draws so we can say probability of red = 16/48 or 1/3 can you continue from here?
OpenStudy (playgames1122):
???
OpenStudy (welshfella):
estimate of number of marbles will be 1/3 of total number in the bag
OpenStudy (playgames1122):
oh ok thanks
OpenStudy (welshfella):
yw
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