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Why is the probability of an event always a number between 0 and 1?
The probability of an event is defined as the ratio of favourable outcomes to total outcomes. In the case of discrete distributions these will be represented by numbers, while for continuous distribution they will be measured as areas. In either case, the first measure is non-negative and the second is positive and so the probability is greater than 0. Also, the number of favourable outcomes cannot be greater than the total so the probability must be at most 1.
Is probability always positive?
The value of a probability is a number between 0 and 1 So it's either positive and less or equal to one or null
Does a negative z score yield a negative probability value?
no, z score can be negative but a probability is a always positive between 0 and 1.
Should the numbers for the experimental probability be close to the theoretical probability?
Not necessarily. There may not even be a way to work out a theoretical probability. Furthermore, there is always a chance, however small, that the experimental probability is way off.
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.
Are all probability values always positive numbers?
yes.
How do you decide which of two numbers is greater when one number is positive and one number is negative?
The positive number is always greater.
Which among this greater -5 or plus 2?
2 of course. Because 2 is positive and -5 is negative and positive numbers are always greater than negative numbers.
what is bigger 50 or -40?
90
Is plus 3 greater or less than -10?
-7
Is the product of two positive numbers greater than the sum of the two numbers?
Not always, but most of the time.
Can probability values be negative?
No. Probability values always have to be positive.
Is the product of two positive mixed numbers ever less then 1?
No. A mixed number must be greater than 1, and two numbers that are greater than one that are multiplied together end up being greater that either number by itself.
Why is the probability of an event always a number between 0 and 1?
The probability of an event is defined as the ratio of favourable outcomes to total outcomes. In the case of discrete distributions these will be represented by numbers, while for continuous distribution they will be measured as areas. In either case, the first measure is non-negative and the second is positive and so the probability is greater than 0. Also, the number of favourable outcomes cannot be greater than the total so the probability must be at most 1.
Is the difference of two numbers always less than at least one of the numbers?
yes. for all positive, distinct numbers greater than 0
Which computation results in a number that is greater than the two given numbers?
-- Addition always does if both are positive. -- Multiplication does if, for example, both are positive and greater than ' 1 '. -- Exponentiation does if, for example, both the base and exponent are positive and greater than ' 1 ' .
Is positive 10 greater than negative 4?
Yes, positive 10 is greater than negative 4. In the number line, positive numbers are always to the right of zero, while negative numbers are to the left. Since 10 is to the right of zero and -4 is to the left, 10 is indeed greater than -4.
