Question: Bank tellers in a certain bank make errors in entering figures in their ledgers at a rate of 0.8 errors per page of entry. What

 Bank tellers in a certain bank make errors in entering figures

Bank tellers in a certain bank make errors in entering figures in their ledgers at a rate of 0.8 errors per page of entry. What is the probability that in five pages there will be three or more or errors? [4mks] Use the normal approximation to the binomial to calculate the probability of getting more than 39 defectives in a random sample of 400 taken from a population which is 8% defective. I [5mks]

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