16. 12 defective pens are accidentally mixed with 132 good ones. It is not possible to just look at a pen and tell whether or not it is defective. One pen is taken out at random from this lot. Determine the probability that the pen taken out is a good one.

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Pawan Prajapati · Accepted Answer

Numbers of pens = Numbers of defective pens + Numbers of good pens∴ Total number of pens = 132+12 = 144 pensP(E) = (Number of favourable outcomes/ Total number of outcomes)P(picking a good pen) = 132/144 = 11/12 = 0.916

10 grade maths> 16. 12 defective pens are accidentally mi...

16. 12 defective pens are accidentally mixed with 132 good ones. It is not possible to just look at a pen and tell whether or not it is defective. One pen is taken out at random from this lot. Determine the probability that the pen taken out is a good one.

Harshit Singh , 3 Years ago

Pawan Prajapati

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10 grade maths> 16. 12 defective pens are accidentally mi...

16. 12 defective pens are accidentally mixed with 132 good ones. It is not possible to just look at a pen and tell whether or not it is defective. One pen is taken out at random from this lot. Determine the probability that the pen taken out is a good one.

Harshit Singh , 3 Years ago

Pawan Prajapati

Provide a better Answer & Earn Cool Goodies

LIVE ONLINE CLASSES

Ask a Doubt

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