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Logic Application

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Submitted By stargirl25
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Phylicia Charles
Instructor: Dr. Abed Almala
MAT 104: Algebra with Application
December 4, 2011

The problem What cards do I have in a guessing game with each card labeled one through nine? This game is being played with three friends and we can only see what each other have since when we draw the cards it goes on our heads without us seeing what we draw. We have to use logic and math to figure what card(s) we have on our heads.
The approach I would use inductive reasoning to solve this problem. This would allow me to logically reason and reach conclusions based on the observations. This means I can look at the cards on my friends head, calculate how much of each number is present in the deck and probability that of me drawing one of the same card my friends have or a different card. In this game I would be using a lot of conjecture; because the evidence is uncertain or incomplete.

Conclusion The recommended course of action was to use logic. The type of logic I recommend and used was inductive .Inductive reasoning was useful by using conjecture to find out what cards I had on my head. Another recommendation is to know the amount of each number so that I was able to calculate the probability of drawing a card that one of my three friends has or entirely different cards. I was able to generalize by making individual observation by paying keen attention to my three friends.

Solutions Details This would be solved for example there are 4 of each number 1 through 9 giving us a total of 36 cards. Andy, Belle, Carol and I have drawn three cards each. Andy has drawn 1, 3 and 7, Belle has drawn 3, 4 and 7 and Carol 4, 6 and 8. So, the probability of me having a 7 on my head is P (7) =4/36 =1/9=0.111.Another way is if Belle ask Carol how many odd numbers she see. Carol replies 7 odd numbers. By using inductive reasoning I observe that Andy has 3 odd numbers and Belle has 2. Since Carol says she sees 7 that mean that I have two odd numbers on my head.

Reference
Smith, K 2011. Math for Liberal Arts, First Edition, Cenage Learning

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