A GIRL KICKS A SOCCER BALL IT GOES 10 FEET AND COMES BACK TO R RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

Blood, he's a vampire! Did you answer this riddle correctly?
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Parrot! Did you answer this riddle correctly?
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Bells Did you answer this riddle correctly?
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1/3

This is a famous question in understanding conditional probability, which simply means that given some information you might be able to get a better estimate.

The following are possible combinations of two children that form a sample space in any earthly family:

Boy - Girl
Girl - Boy
Boy - Boy
Girl - Girl

Since we know one of the children is a boy, we will drop the girl-girl possibility from the sample space.
This leaves only three possibilities, one of which is two boys. Hence the probability is 1/3 Did you answer this riddle correctly?
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Russian Roulette
Probability puzzles require you to weigh all the possibilities and pick the most likely outcome.


Puzzle ID: #17681
Fun: *** (2.59)
Difficulty: ** (2.07)
Category: Probability
Submitted By: JMCLEOD****
Corrected By: cnmne








You are in a game of Russian Roulette with a revolver that has 3 bullets placed in three consecutive chambers. The cylinder of the gun will be spun once at the beginning of the game. Then, the gun will be passed between two players until it fires. Would you prefer to go first or second?


Answer
Label the chambers 1 through 6. Chambers 1 through 3 have bullets and chambers 4 through 6 are empty. After you spin the cylinder there are six possible outcomes:

1. Chamber 1 is fired first: Player 1 loses
2. Chamber 2 is fired first: Player 1 loses
3. Chamber 3 is fired first: Player 1 loses
4. Chamber 4 is fired first: Player 2 loses (First shot, player 1, chamber 4 empty. Second shot player 2, chamber 5, empty. Third shot player 1, chamber 6 empty. Fourth shot player 2, chamber 1 not empty.)
5. Chamber 5 is fired first: Player 1 loses (First shot, player 1, chamber 5 empty. Second shot player 2, chamber 6, empty. Third shot player 1, chamber 1 not empty.)
6. Chamber 6 is fired first: Player 2 loses (First shot, player 1, chamber 6 empty. Second shot, player 2, chamber 1, not empty)

Therefore player 2 has an 4/6 or 2/3 chance of winning. Did you answer this riddle correctly?
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She ran away from the ball. Did you answer this riddle correctly?
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A balloon. Did you answer this riddle correctly?
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Oranges Did you answer this riddle correctly?
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Gold Did you answer this riddle correctly?
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An anchor Did you answer this riddle correctly?
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Vanishing Cream Did you answer this riddle correctly?
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5

You walked into the room which added 1 + 34 = 35

Then you take away 30 from 35 = 5 Did you answer this riddle correctly?
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She was blind and reading Braille. Did you answer this riddle correctly?
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I am jumping rope. Did you answer this riddle correctly?
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I am a baseball Did you answer this riddle correctly?
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