A lot consists of 144 ball pens of which 20 are defective and others good. Nuri will buy a pen if it is good, but will not buy if it is defective. The shopkeeper draws one pen at random and gives it to her. What is the probability that
(i) She will buy it?
(ii) She will not buy it?
Answers
Answered by
6
Answer:
She will buy 124/144
she will not buy 20/144
Answered by
14
(i) 31/36
(ii) 5/36
Step-by-step explanation:
Total number of ball pens = 144
Number of defective = 20
So number of good ball pens = 144 - 20 = 124
(i) probability that Nuri will buy ball pen = favorable outcomes/ total outcomes = 124/144 = 31/36
(ii) probability that Nuri will not buy = defective pens/ total outcomes = 20/144 = 5/36
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