Question

A bag contains 3 red marbles, 2 blue marbles and 5 green marbles. What is the probability of selecting a blue marble, replacing it in the bag and then selecting a green marble?

Answer 1

7/10? @YinYangInsane

Answer 2

for getting a blue marble there is 2 in 10 chance or 1/5. for selecting a green marble without the blue one gone would be 5 in 10 or 1/2. with the blur marble gone, it would be 5/9

Answer 3

no direct answers plz

Answer 4

its not 5/9

Answer 5

multiply the probabilities

(2/10)*(5/10)

Answer 6

\[=\frac{1}{5}\times\frac{1}{2}=\frac{1}{10}\]