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tcapele252
27.08.2019 •
Mathematics
Abag contains 8 white marbles and 2 black marbles.you pick out a marble, record its color,and put the marble back in the bag.if you repeat this process 45 times, how many time would you expect to remove a white marble from the bag?
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Ответ:
8/10 marbles are white which is 80%
so it would follow that on average 80% of the 45 marbles would be white.
Which is 36 marbles.
Ответ:
XY ≅ WZ
Hope this helps...
Have a great day!