During the summer Frank earned $60 less than three times as much as his brother Fred. Together they earned $1220. How much did t
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The probability of finding one of the two defective fuses is:
The probability of finding 2 defective fuses is:
Therefore the probability of rejecting is 0.3117 + 0.026 = 0.3377.
The probability of finding 2 defective fuses is:
Therefore the probability of rejecting is 0.3117 + 0.026 = 0.3377.