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3 years ago

5

A bag of 10 brown marbles and 8 green marbles. half of the marbles are made plastic. a marble is selected at random from bag. wh

at is probability that it is a green, plastic marble?

1 answer:

spayn [35]3 years ago

7 0

10 x8 = 80 that is green plastic marbles

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Answer:

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The mean is:

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In this case, our set has 5 elements, and the set is:

{2, 4, 6, 9, 14}

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And the population standard deviation is:

$PSD = \sqrt{\frac{|2 - 7|^2 + |4 - 7|^2 + |6 - 7|^2+ |9 - 7|^2 + |14 - 7|^2 }{5}} = 4.2$

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