If the probability of a defective bolt is 0.2 what is the average number of defective bolts in a total
of 900?x
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Answer:
no of defective bolts is 180
Step-by-step explanation:
P(defective bolts) =>
number of defective bolts/total number of bolts
it is given that P(defective bolts) = 0.2
therefore 0.2 = no of defective bolts/900
=> no of defective bolts = 0.2×900 => 180
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