Hi does anyone have any suggestions on how to solve this problem? To construct a circuit a student needs, among others, 12 chips of a certain type. The student knows that 4% of these chips are defective. How many chips have to be provided so that, with a probability of not less than 0.9, the student has a sufficient number of nondefective chips in order to be able to construct the circuit?
amount of chips required to insure that a least 90% of the time 12 are nondefective
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probability