Generally you should express it as a number between 0 (impossible) and 1 (absolute certainty). Either as a decimal or fraction is OK. For example, the probability of a fair coin toss landing on heads is 0.5. The probability of a fair die landing on 4 is 1/6.
But it's also common to see probability written as a percentage between 0% (impossible) and 100% (absolute certainty). So P(coin landing on heads)=50.0% and P(die landing on 4)=16.7%.
Probability questions are not all the same so there is not a single kind of answer: it depends on the nature of the question!
A spinner has the numbers 1 thru 9. What is the probability of P(less than 6)? Write the answer as a decimal.
The complement (not compliment) of the probability of event A is 1 minus the probability of A: that is, it is the probability of A not happening or "not-A" happening.The complement (not compliment) of the probability of event A is 1 minus the probability of A: that is, it is the probability of A not happening or "not-A" happening.The complement (not compliment) of the probability of event A is 1 minus the probability of A: that is, it is the probability of A not happening or "not-A" happening.The complement (not compliment) of the probability of event A is 1 minus the probability of A: that is, it is the probability of A not happening or "not-A" happening.
1/6
No 1.001 is not a probability. Probability can not be >1
21 is a number. You cannot write that as a probability since it is not an event.
Yes, the probability of an event is a number between 0 and 1 (both inclusive). You can write it as a fraction - in rational form or as a percentage.
Probability questions are not all the same so there is not a single kind of answer: it depends on the nature of the question!
A spinner has the numbers 1 thru 9. What is the probability of P(less than 6)? Write the answer as a decimal.
1 in 6, or 0.17.
Whenever there is only one possible outcome of an experiment, the probability of this outcome is 1, which you can also write as 100%.
See related link.
The total number of days in a leap year is 366. Then, if we want to determine the probability of 53 Wednesdays occurring in a leap year, we write 53 / 366.
two dice are thrown once. write all the possible outcomes. find the probability of getting: (i) a total of 12 (ii) a total of 3 (iii) a total of 8
P(1 or 6)
The complement (not compliment) of the probability of event A is 1 minus the probability of A: that is, it is the probability of A not happening or "not-A" happening.The complement (not compliment) of the probability of event A is 1 minus the probability of A: that is, it is the probability of A not happening or "not-A" happening.The complement (not compliment) of the probability of event A is 1 minus the probability of A: that is, it is the probability of A not happening or "not-A" happening.The complement (not compliment) of the probability of event A is 1 minus the probability of A: that is, it is the probability of A not happening or "not-A" happening.
1/6