Q18 of 63 Page 963

If 7/10 is the probability of occurrence of an event, what is the probability that it does not occur?

We know that,


Probability of occurring = 1 - the probability of not occurring


Given the probability of occurrence


Therefore, the probability of not occurrence



Conclusion: Probability of not occurrence is


More from this chapter

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16

What is the probability that in a group of two people, both will have the same birthday, assuming that there are 365 days in a year and no one has his/her birthday on 29th February?

 17

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

(i) 0 (ii)


(iii) (iv)


19

The odds in favor of the occurrence of an event are

8 : 13. Find the probability that the event will occur.


 20

If the odds against the occurrence of an event be 4 : 7, find the probability of the occurrence of the event.