Question

Find the probability of the given event. A bag contains 7 red marbles, 2 blue marbles, and 3 green marbles. A randomly drawn marble is blue.

Answer 1

Answer:
`(1)/(6)`

Explanation:

The given event : A randomly drawn marble is blue.

The number of blue marbles in the bag = 2

The total number of marbles in the bag =
`2+7+3=12`

Now, the probability of drawing a blue marble is given by :-

`\text{P(Blue)}=\frac{\text{Number of blue marbles}}{\text{Total number of marbles}}\\\\\Rightarrow\text{P(Blue)}=(2)/(12)=(1)/(6)`

Hence, the probability of the given event event =
`(1)/(6)`