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#1 (permalink) |
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Senior Member
Join Date: Aug 2005
Location: Louisville, KY
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THE FINAL EXAM . . . . . .Teachers are going to love this one!!
At Penn State University, there were four sophomores taking chemistry and all of them had an 'A' so far. These four friends were so confident that, the weekend before finals, they decided to visit some friends and have a big party. They had a great time but, after all the hearty partying, they slept all day Sunday and didn't make it back to Penn State until early Monday morning. Rather than taking the final then, they decided that after the final they would explain to their professor why they missed it. They said that they visited friends but on the way back they had a flat tire. As a result, they missed the final. The professor agreed they could make up the final the next day. The guys were excited and relieved. They studied that night for the exam. The next day the Professor placed them in separate rooms and gave them a test booklet. They quickly answered the first problem worth 5 points. Cool, they thought! Each one in separate rooms, thinking this was going to be easy . . . then they turned the page. On the second page was written . . . . . For 95 points: Which tire? _________ ![]() ![]() ![]() ![]() :toun ge2:
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#3 (permalink) |
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Senior Member
Join Date: Aug 2005
Location: Louisville, KY
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Actually, I don't think that is correct, since each guy has four shots at faking the same answer as each of the other four, but the numbers of possibilities for all four of them goes up geometrically with each guesser.
The number of possible combinations is probably vastly greater. I took probability theory MANY years ago and I don't recall the formula for figuring that out, but I think that you multiply each number by itself. That's probably wrong (and hopefully some one of our more intelligent and educated Rooers will straighten me out on the matter), but it is certainly more than a thousand possible combinations. If it is 4x4x4x4x4, then the answer would be 1024, but that seems too few to me. Oh well, I could never add two and two reliably, which is why I became a lawyer instead of a mathematician ![]() ![]() ![]() .
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#5 (permalink) |
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Jokaroo Enthusiast
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Even if 3 said the right front and 1 said the back left. They all would be wrong. [
The probably would be greater if you took 100 students and asked them to roll one dice, and write down the number each time. There are only 2 numbers on the die a 1 and a 3. The probably would be 50 -50. Four students rolling the die once the probably would also be 50 - 50 and all four students rolling the die the same would be 1 in 4 equaling a 1 in 4. |
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#6 (permalink) | |
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Senior Member
Join Date: Aug 2005
Location: Louisville, KY
Posts: 16,986
Rep Power: 1734 ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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