Question: The probability that you will be late for school in the morning is 0.2. (a) Denote X the number of being late for school

The probability that you will be late for school in the morning

The probability that you will be late for school in the morning is 0.2. (a) Denote X the number of being late for school in 5-day weekday. What is the set of possible values of the variable X? (2 marks) (b) What are the mean and the variance of X? (4 marks) (c) If you sleep early at the night, the probability of being late will be getting down to 0.05. What is the probability that you will be on time at least four times? (4 marks)

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