A bag contains 50 marbles, 10 of which are blue, 8 are red, 20 are green, and 12 are purple. Marcie takes a marble out of the bag, records the color, and returns it to the bag. How many red marbles should she expect after 500 trials?

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Question

Haleigh Boyle

Mathematics

20 February, 17:31

A bag contains 50 marbles, 10 of which are blue, 8 are red, 20 are green, and 12 are purple. Marcie takes a marble out of the bag, records the color, and returns it to the bag. How many red marbles should she expect after 500 trials?

80

100

120

200

+2

Answers (2)

Know the Answer?

Alice Moses · Answer 1

I believe 200, but im not 100% sure.

Sunshine · Answer 2

80. There are 8 red marbles out of 50. That is a percentage of 0.16, or 16%. Then, if there are 500 trials, find 16% of 500 by multiplying 500 times 0.16

A bag contains 50 marbles, 10 of which are blue, 8 are red, 20 are green, and 12 are purple. Marcie takes a marble out of the bag, records the color, and returns it to the bag. How many red marbles should she expect after 500 trials?80100120200

A bag contains 50 marbles, 10 of which are blue, 8 are red, 20 are green, and 12 are purple. Marcie takes a marble out of the bag, records the color, and returns it to the bag. How many red marbles should she expect after 500 trials?

80

100

120

200