Question

you randomly draw a marble from a bag of marbles that contains 7 blue marbles, 2 green marbles, and 1 red marble. what is the probability not draw a blue marble

Answer 1

Likely.... There is a 70% that a blue marble will be chosen so it's a 30% for the blue marvel not to be chosen

Answer 2

0.3

Explanation:

It is given that,

Number of blue marbles = 7

Number of green marbles = 2

Number of red marbles = 1

Total number of marbles = 7+2+1=10

We need to find the probability that we do not draw a blue marble.

`P=\frac{\text{Number of non-blue marbles}}{\text{Total number of marbles}}`

`P=(2+1)/(10)`

`P=(3)/(10)`

`P=0.3`

Therefore, the required probability is 0.3.