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Probability

Question

The probability that a bulb produced by a factory will fuse after 150 days of use is 0·05. Find the probability that out of 5 such bulbs none will fuse after 150 days of use.

Solution

Here n = 5
$straight p space equals space 0.05 space equals space 5 over 100 space equals space 1 over 20 comma space space space space straight q space equals space 1 space minus space straight p space equals space 1 minus space 1 over 20 space equals space 19 over 20$

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Probability

The probability that a bulb produced by a factory will fuse after 150 days of use is 0·05. Find the probability that out of 5 such bulbs none will fuse after 150 days of use.

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