# Question

Critical key-entry errors in the data processing operation of a large district bank occur approximately .1% of the time. If a random sample of 10,000 entries is examined, determine the following:

a. The expected number of errors

b. The probability of observing fewer than four errors

c. The probability of observing more than two errors

a. The expected number of errors

b. The probability of observing fewer than four errors

c. The probability of observing more than two errors

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