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There is a bag filled with 5 blue, 6 red and 2 green marbles. A marble is taken at random from the bag, the colour is noted and then it is replaced. Another marble is taken at random. What is the probability of exactly 1 red?

Respuesta :

altavistard

Answer:

6/13

Step-by-step explanation:

If the first marble drawn is replaced (and the bag of marbles is shaken so as to be returned to a random distribution of the marbles), then the probability of exactly 1 red is

 number of red marbles

-------------------------------------- = 6/13

total number of marbles  

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