A bag contains 30 marbles, 3 of which are blue, 20 are red, 5 are green, and 2 are purple. Emerson takes a marble out of the bag, records the color, and returns it to the bag. How many purple marbles should he expect after 300 trials?

Question

Yazmin Bowen

Mathematics

5 December, 00:57

A bag contains 30 marbles, 3 of which are blue, 20 are red, 5 are green, and 2 are purple. Emerson takes a marble out of the bag, records the color, and returns it to the bag. How many purple marbles should he expect after 300 trials?

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Answers (2)

Know the Answer?

Ashlee Preston · Answer 1

The correct answer is A. 20.

Oh and just to let you know I really really think this is correct = )

Miracle Strickland · Answer 2

That is a pretty hard one, but about 20. 2 x 10 since there are 30 marbles, so it makes sense to say 30 x 10 to get 300, but since you only have 2 purple, you only get 2 purple out of every 30,

SO in conclusion, 20 purple marbles.