Five defectivebulbs are accidentallymixedwith20 good one. It is not possibleto just look at a bulb and tell whethrer or not it is defectiv. Find the probabilitydistributionfrom this lot
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number of good bulbs = 20
number of defective bulbs= 5
total number of bulbs =20 + 5 = 25
p(good bulb)=number of favourable outcomes by total number of outcomes
=20÷25
p(defective bulb)=5÷25
number of defective bulbs= 5
total number of bulbs =20 + 5 = 25
p(good bulb)=number of favourable outcomes by total number of outcomes
=20÷25
p(defective bulb)=5÷25
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