Question

The probability of drawing a red marble is 2/9. What is the probability they will NOT draw a red marble? Write your answer as a fraction in lowest terms.

Answer 1

`P(\bar E)=(7)/(9)`

Explanation:

If P(E) is the probabillity of geting an event and P(E (not)) is the probability of getting not an event. Then,

`P(E)+P{(\bar E)=1`

We need to find the probability they will not draw a red marble.

We have, P(E) = 2/9

So,

`P{(\bar E)=1-P(E)`

`\\\\=1-(2)/(9)\\\\=(7)/(9)`

So, the probability they will not draw a red marble is 7/9.