November Rain
Single Mother
- Joined
- Sep 27, 2005
- Messages
- 13,322
- Reaction score
- 2
- Points
- 31
INspiration
i did this one on like page 5A man in the park has a heart attack, two police officers come up to him and say "who is your your next of kin sir, we must inform them if this take a turn for the worse" the man then points to another man in the park and says "brothers, sisters I have none, but that mans father is my fathers son". Then he died.
Who is he pointing to?![]()
He's pointing to his son....Classic. Or maybe his nephew?
The man's father's son could be his brother and his brother could be the father or the other man.
-TNC
INspiration
I got a riddle told to me 3 weeks ago but no answer yet sadly. It's been on my mind for weeks. Here is te way it was told to me.
Three men are in a car. They drive over a bridge. They are blood related. How are they related if one is the father of the other one's son?
Here are the clues I was given (In spoilers for the die hard ridder people)
No religion, sperm donation, gayness, sex changes, or any Jerry Springer things are part of the answer. The son is not in the car. And the word 'Putter' is a clue to the answer. It's also apparently an old Asian riddle, I think Japanese.
n = f___ THATThis isn't quite a brain teaser, but it's a homework problem of mine that I'm struggling with.
I believe it's a hypergeometric probability distribution problem.
"A purchaser will reject a lot size N = 25 with the decision rule of finding one or more nonconforming components in a sample of size n, and wants the lot to be rejected with probability at least 0.95 if the lost contains five or more nonconforming components.
What is n?"
I know the answer is n = 11 and I've spent almost two hours on trying to figure out how to prove it.
Any takers?
-TNC
This isn't quite a brain teaser, but it's a homework problem of mine that I'm struggling with.
I believe it's a hypergeometric probability distribution problem.
"A purchaser will reject a lot size N = 25 with the decision rule of finding one or more nonconforming components in a sample of size n, and wants the lot to be rejected with probability at least 0.95 if the lost contains five or more nonconforming components.
What is n?"
I know the answer is n = 11 and I've spent almost two hours on trying to figure out how to prove it.
Any takers?
-TNC
I don't know how. Maybe x = 0 (prob of finding one or more)It's been a long long time since I've done statistics. But, looking at it as just another equation, you know the value of several variables. If I understand it correctly (which is highly suspect); P = .95 (final output of equation), N = 25 (population size), M = 20 (number of successes in a lot). I'm not sure what x is, or if my interpretation of what 20 is is right.
But, assuming you have P, N, M, and x, couldn't you substitute the values and solve for n?
I don't know how. Maybe x = 0 (prob of finding one or more)
I'll eventually get something like (?? - n)!/(?? - n)! = ?? I don't know how to divide out those factorials. I thought M would be like 5 or something. I'm not entirely sure. The problem is just worded strangely.
-TNC
Riddle # 72:
Besides the mathematics, how can the following statement be true?
Eleven plus two = Twelve plus one
Heh, it might not make a difference then. I need this information by 7pm tomorrow.
-TNC