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As a quality-control inspector for toy trucks, you have observed that 3% of the time, the wooden wheels are bored off-center. If 6 wooden wheels are used on each toy truck produced, what is the probability that a randomly selected toy truck has no off-center wheels

Answer :

TPS
probability that a wheel will be off-centre = 3% = 0.03
probability that a wheel will not be off-centre = 1-0.03 = 0.97
number of wheels on each truck = 6

the probability that a randomly selected toy truck has no off-centre wheels
= 0.97×0.97×0.97×0.97×0.97×0.97
= (0.97)⁶
=0.833

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