A box of 12 dozen pens contains a defective pens . One pen is take n out of random.What is the probablity that the pen taken out is defective or non defective
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Answer:1/12 and 11/12 respectively
Step-by-step explanation:
No of defective pens=1
No of non defective pens=11
No of pens = 12
Probability of defective pen taken out = 1/12
Probability of non defective pen taken out=11/12
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