Javier volunteers in community events each month. He does not do more than five events in a month. He attends exactly five events 35% of the time, four events 25% of the time, three events 15% of the time, two events 15% of the time, one event 5% of the time, and no events 5% of the time.

actual question

Find the probability that Javier volunteers for less than three events each month. (Enter an exact number as an integer, fraction, or decimal)

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for less than three events, the cases include 0 events, 1 event , and 2 events.

so the required probability is : 15/100 + 5/100 + 5/100

so the total required probability is : 25/100= 25%

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