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
Question
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
Solution
The probability of an event is a measure of the likelihood that the event will occur. If the probability of an event is 1, it means that the event is certain to happen.
Event A: The sun will rise from the east tomorrow. This is a certain event because the sun always rises from the east. So, the probability of this event is 1.
Event B: It will rain on Monday. This event is not certain because whether it will rain or not on a particular day is unpredictable. So, the probability of this event is not 1.
Event C: February month has 29 days in a leap year. This is a certain event because by definition, a leap year is a year, occurring once every four years, which has 366 days including 29 February. So, the probability of this event is 1.
Therefore, the events that have a probability equal to 1 are events A and C. So, the correct answer is (d) both events A and C.
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