1(ix)
Event A : The sun will rise from east tomorrow.
Event B : It will rain on Monday.
Event C : February month has 29 days in a leap year.
Which of the above event(s) has probability equal to 1 ?
- (a)all events A, B and C
- (b)both events A and B
- (c)both events B and C
- (d)both events A and C
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The sun always rises from east and also in a leap year February has 29 days.
∴ Event A and Event C has probability equal to 1.
Hence, Option 4 is the correct option.