Question by sonia: A bag contains 5 yellow marbles, 16 green marbles, and 2 red marbles. What is the chance of drawing a yellow?
If a red marble is drawn the first time and then a second marble is drawn without replacement, what is the probability of drawing a green marble? Give solutions exactly in reduced fraction form, separated by a comma.
Best answer:
Answer by Richard B
all Q reduce to the same idea
what are the total number of possible outcomes at any time
what is the number of desired outcomes in the same group
P success is the fraction : desired # / total #
percent is the fraction expressed a percent
a coin has two sides: one head, one tail
probability of head is 1/2 = 50% ( ignoring the possibility that it might land on edge)
Know better? Leave your own answer in the comments!
Tags:chance, contains, drawing, Green, marbles, Solutions, Yellow
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