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Hi, and welcome to the plan of the Math Talks, with me Linda, anyway let's get on with my question. Suppose I have 2 different games, where the person could win a prize, but I want to find the game with the less chance of winning, which game would that be?
This game, has only 2 ways to win, by pulling out the same 2 colored marbles, but each bag has a different amount, we then find out that the theoretical probability of winning is 2/6
Now in this next game to win, you must spin the spinner and land on a gold part, there are a total of 9 sections, we then find out that our theoretical probability is 4/9...Now this is the problem we can't see which one is bigger, so what do we do?
well we could find the greatest common factor...That's it!!!
Yeah! that way when we have to common factor we can see which one has the high winning probability
we could find the greatest common factor
Ok, so we know that the probablity of the marble game is 2/6 and the spinner game is 4/9...So the greatest common factor is 18! well when we do get them we have the change the numeratoras well , which will get us 6/18 and 8/18, the greater one being 8/18 which is the spinner game.
Wellso we should go with playing the marble game more, I mean we are running low on money, somight as well...Hopefully this works!!
2/6 = 6/18
4/9 = 8/18
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