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Probability of 0 is impossible, and 1 is certain. So, probability must be between 0 and 1, inclusive.

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โˆ™ 2012-12-09 13:53:43
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Q: Why the probability can never be 1 or less than 0?
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Related questions

Why cannot a probability not be less than 0?

0 means there is no chance of something happening. You cannot have less than no chance of something happening. So a probability cannot be less than 0.


When probability is less then 0 what happen?

Probability can not be less than 0 or greater than 1. A probability of 0 means there is no possibility whatsoever of an event occurring. A probability of 1 means that the event is guaranteed to occur no matter what.


Can a probability be more than 1 or less than 0?

No. A probability of 1 means something will definitely happen. There cannot be a greater certainty than that, so probability cannot be greater than 1. 0 means there is no chance of something happening. You cannot have less than no chance of something happening. So a probability cannot be less than 0.


Are the probability values always greater than or equal to 0 or less than or equal to 1 or all positive numbers?

Probability values are never negative and are always between 0-1 according to the definition Probability of A= Number of outcomes classified as A/Total number of possible outcomes


Why probability always lays 0 to 1?

0 represents that is will never happen. It means that there is no probability that it will happen. 1 represents that is is certain to happen. You cannot be more certain than definitely certain, and something cannot be less probable than not at all.


Can the probability be more than 1 or less than 0?

No, all probabilities are given from a scale of 0 to 1. 0 represents 0% and 1 represents a 100% probability.


Can the value of probability be less than zero?

No. Probability must be between 0 and 1.


Can the probability of paternity be 0 percent?

If you have a sperm amount less than 3 ml the probability decreases. No, sorry to say but all it takes is one sperm. On the other hand when testing for paternity the test is never 0, it can be close to it but never zero, due to the + or - error in the mathematical formula used.


Can probability be less than 0?

No, it must be a number in the interval [0, 1].


Which is not a possible vaule for a probability?

Probability value can only be real number between 0 to 1, therefore, it cannot be greater than 1 or less than 0 or a complex number.


What can a probability number be larger than?

Larger or equal to 0 but less than or equal to 1


Given a standardized normal distribution with a mean of 0 and a deviation of 1 what is the probability that Z is less than 1.51?

From the related link, you can read directly the probability that Z is less than 1.51 is 0.9345.


Which of the following cannot be the probability of an event?

There is insufficient information in the question to properly answer it. You did not provide the list of "the following". Please restate the question. However, by definition of probability, a probability less than 0 (the event will never happen) or greater than 1 (the event will always happen) is impossible, so maybe that answers your question.


What are Synonyms of probability from likely to least likely?

certainty (no doubt), probability or likelihood (greater than 50% chance), possibility (greater than 0% but less than 50% chance)


Why can't probability be less than 0?

Because probability is measured from zero to one, where zero means something cannot happen and one meaning it will definitely happen. This can also be looked at as there being a 0% chance or 100% chance of it happening. So obviously there can not be less of a chance than it definitely not happening, so it cannot be less than zero.


What is an event with a probability greater then 0 but less than half?

There are many such events. The probability of throwing a 1 or 2 on one roll of a die, for example.


Suppose z has a standard normal distribution with a mean of 0 and a standard deviation of 1. the probability that z is less than 1.15 is?

probability is 43.3%


Does something that can never happen have a probability of 0?

Yes, a probability of 0 is something that cannot happen.


What does a probability of 0 mean give an example?

ifan event has a probability of zero it'll never happen. 6 over 0 will never happen.


Why probability is greater than 0 less than 1?

Probability is defined in such a way that 0 (or 0%) means that something is impossible to happen, and 1 (or 100%) means that the event is inevitable. Anything in between means that it MAY happen. Anything outside that range doesn't make sense.


What is the probability that something will never happen?

It depends on what the "something" is. The probability that the roll of a regular die will never exceed 6 is 1. The probability that the roll of a regular die will never exceed 3 is 0.5. The probability that the roll of a regular die will never exceed 0 is 0.


Can 1.290994449 be a probability?

No. Probability is measured on a score of 0 to 1, which represents 0% (can never happen) to 100% (always happens).


When a dice is rolled what is the probability of getting an even number less than 6?

you would have a one third chance :0)


A probability can be no larger than what and no smaller than what?

A probability can be no larger than 1 and no smaller than 0.


Why does the probability of an event have to be between 0 and 1?

Probabilities are expressed as ratios, or more accurately, fractions. If an event will probably occur 1 time in 10 trials, its probability is 1/10, or 0.1. If the event happens every time (10 in 10, for example), the probability is 10/10 = 1.0. You can never have more than n occurrences in n trials. Conversely, if the event never occurs in 10 trials, its probability is 0/10 = 0.0. An event cannot occur fewer than 0 times. This is why the lower and upper bounds of all probabilities are 0 and 1, respectively.