Question: 1.On average, five clients arrive at a local bank every hour. assume the probability of arrival is the same for periods of equal length and

1.On average, five clients arrive at a local bank every hour. assume the probability of arrival is the same for periods of equal length and that arrival of one period is independent of the arrival in another.

On any given day, what is the probability that five clients will arrive at the local bank between 13:00 and 15:00?

2.Suppose that a random variable Y is normally distributed with a mean of 200 and a variance of 100.

What is the probability that Y is less than 206?

3.It is known that 30% of households exposed to an advertisement will not buy the product advertised. Ten households are selected randomly and exposed to the advertisement. Assume a binomial experiment.

What is the probability that eight households will buy the product advertised?

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