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Five defective bulbs are accidently mixed with 20 good ones. It is not possible to just look at a bulb and tell whether or not it is defective. Find the probability distribution from this lot.

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Given : Five defective bulbs are accidently mixed with 20 good ones.

To find : probability distribution from this lot

Formula used :

Five defective bulbs are accidently mixed with 20 good ones.

Total number of bulbs = 25

X denote the number of defective bulbs drawn

X can draw the value 0 , 1 , 2 , 3 , 4.

since the number of bulbs drawn is 4, n = 4

The probability distribution table is as follows,

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