standardized that 14 out of every 25 items is produced without defects, defective and non-defective items have a behavior normal. If a sample of 300 items is selected, determine the probability that: a) At least 138 are defective b) At most 145 are defective.
standardized that 14 out of every 25 items is produced without defects, defective and non-defective items have a behavior normal. If a sample of 300 items is selected, determine the probability that: a) At least 138 are defective b) At most 145 are defective.
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Question
It is known that a manufacturing process has standardized that 14 out of every 25 items is
produced without defects, defective and non-defective items have a behavior
normal. If a sample of 300 items is selected, determine the probability that:
a) At least 138 are defective
b) At most 145 are defective.
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