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Probability

The probability of a certain event is a number expressing the likelihood that a specific event will occur, expressed as the ratio of the number of actual occurrences to the number of possible occurrences. In mathematics, it is a measure of how often an event will happen and is the basis of statistics.

14,643 Questions

How many possible outcomes for one coin toss?

2 because it can either be heads or tails:) but if the coin is a 2 headed quarter only one.

Importances of probability in real life?

the importance of probability of our life is wait example: A: he is doing a coin toss now...

B:really, ok tell me he is going to get head or tail.

A: the probability is 50/50 i dont no.

seee you stupid,,,,,,idiot......i am telling those words becuz i dont even really know the ans ;P

What does it mean when 9 furry caterpillars crawling head to tail across your way?

I know, their showing you how to "Heel-an-Toe, Ah....no, they heard this is how to get all your DUCKS in a row, er.. I think.

How many different outcomes are possible when flipping a coin and rolling a dice?

The coin can result in one of two possibilities. For each of those . . .

The cube has 6 possibilities.

Total possibilities for the coin and the cube = 2 x 6 = 12 .

Alternate Wordings for 'In a shop there are 20 customers 18 of whom will make a purchase. If three customers are selected one at a time at random what is the probability that all will make a purchase?

Here is another way to phrase the question: If 18 out of 20 customers make a purchase in a shop, and three customers are selected at random, what is the probablity that all will make a purchase?

Each random customer has a 18/20 chance of being one that purchased, so the probability that all three make a purchase is 18/20*18/20*18/20=.729

What is a penny with a tails side and the other side is smooth with a circular bump in the middle worth?

Sounds like a possible capped die error -- worth $50-$100. Check out Mike Byers' Error Coin Website -- http://mikebyers.com -- and perhaps you can send pictures to him for an exact appraisal.

What is the probability of rolling an even number on a standard 6 sided die if an even number is rolled 7 times out of 12?

A standard die has no memory and so the probability of rolling an even number is always a half.

If you did not know that the die was standard and were using the fact that 7 out of 12 rolls were even as an empirical estimate for a loaded die then the answer is 7/12.

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