Question

The probablity of getting a defective bulb in a lot of 500 bulbs is 0.290. find the number of defective bulb in the lot

Answer 1

Step-by-step explanation:

0.290×500 =145 bulbs are defective

Answer 2

The question is the probablity of getting a defective bulb in a lot of 500 bulbs is 0.290.

we have to find the number of defective bulb in the lot

from the question the probability of getting a defective bulb is 0.290

The total number of bulbs in the lot is 500 =n(s).

we have to find the number of defective bulbs.

The formula for the probability is

$\frac{number \: of \: \: possible \: outcome }{total \: number \: of \: outcome} = probability$

substituting the values in the above formula we get

$0.290 = \frac{x}{500}$

the value of x have to be found

$(0.290) \times (500) = 145$

Therefore, the number of defective bulbs in the slot is 145 bulbs.

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