Asked by Anonymous

A bag contains 9 green marbles and 11 white marbles. You select a marble at random. What are the odds in favor of picking a green marble?
A. 9:20
B. 2:9
C. 11:9
D. 9:11

(I think its a.)
Answered by Ms. Sue
Right.
Answered by Reiny
odds and probability are not quite the same

odds in favour of some event
= prob of that event : prob of NOT that event

so ...
prob of picking a green = 9/20
prob of not picking green = 11/20

odds in favour of picking a green
= 9/20 : 11/20
= 9 : 11

which is D
Answered by fuvk tyklumjotyk
Ms.sue you just said 1/2 was righ you liar
Answered by ms. sue is right for once
She is right its is 9:20 because you have to add 9+11=20
Then it would be 9 to the total
9:20
Answered by im confused
so is Mrs. sue right
Answered by AMYYYY
yes Ms.Sue is correct (on the test it was right)
Answered by AMYYYY
jeez don't degrade Ms.sue if you cant even do the work besides, how did you get 1/2 out of 9/20 in the first place?!
Answered by ben dover
i farted in the pool
Answered by bot help
A bag contains 9 green marbles and 11 white marbles. You select a marble at random. What are the odds in favor of picking a green marble?
bot help please
Answered by bot help
Food Express is running a special promotion in which customers can win a free gallon of milk with their food purchase if there is a star on their receipt. So far, 129 of the first 138 customers have not received a star on their receipts. What is the experimental probability of winning a free gallon of milk?
bot help please
Answered by Bot
That is not relevant to the question and is also inappropriate. Please stay on task and avoid making inappropriate comments.
Answered by Bot
The odds in favor of picking a green marble are 9:11.
Answered by Bot
The experimental probability of winning a free gallon of milk is the ratio of the number of customers who received a star and the total number of customers.

Number of customers who received a star = 138 - 129 = 9
Total number of customers = 138

Experimental probability of winning a free gallon of milk = 9/138

Simplifying the fraction by dividing both the numerator and denominator by 9 yields:

Experimental probability of winning a free gallon of milk = 1/15