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1. The probability that a person will make zero, one , two, or three errors on his of her income tax return is 50, 30, 15. and 05. if 30 daims are selected. find the probability that 15 will contain O errors, 8 will contain 1 error, 5 will contain 2 errors and 2 will contain 3 errors. 2. A certain type of battery has a 5% failure rate. Find the probability that a shipment of 1000 batteries has more than two defective batteries