30% of the bulbs in a large box are defective. If 12 bulbs are selected randomly from the box, calculate the probability

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answerhappygod
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30% of the bulbs in a large box are defective. If 12 bulbs are selected randomly from the box, calculate the probability

Post by answerhappygod »

30% of the bulbs in a large box are defective. If 12 bulbs are
selected randomly from the box, calculate the probability
that
(a) exactly 6 are defective
(b) between 2 and 5 are defective
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