The probability that Dan walks to school is 4/5 ,the expected number of days that Dan cycles to school in a school year is 200.
What is Probability ?
Probability is the study of the likelihood of an event to happen.
It has a range of 0 to 1.
It is given in the question that
The probability that he cycles to school is 1/5 (missing data , incorrectly written in the question)
The probability that Dan walks to school = 1-1/5 = 4/5
There are 200 days in a school year.
the expected number of days that Dan cycles to school in a school year
= (1/5)*200
= 40 days
Therefore he cycles 40 days in a school year.
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