a queen?
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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Answer:
11/12
Step-by-step explanation:
good pens = 132
defective pens = 12
total pens = 144
probability of good pens = good pens / total number of pens
132/144
11/12
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