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3 votes
If you drew a marble from a bag containing 40 marbles and you had a probability of drawing a red marble, how many red marbles are in the bag?

6
10
3
5

User Juliocesar
by
8.3k points

1 Answer

3 votes

Answer:

There are 5 red Marbles

Explanation:

Alright so since the probability of drawing a red marble is

P(Red) = #Outcomes of Red/#Outcomes in Sample space

The sample Space is 40 marbles.

The probability of drawing red was said to be
(1)/(8)

P(Red) =
(1)/(8)


P(Red) = (r)/(40)\\ (1)/(8) = (r)/(40)\\ (40)/(8) = r\\ 5 = r

User Johan Bresler
by
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