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2. The table below shows the ages of teachers by departments at a high school. Find the following probabilities when one teac
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Answer #1

a) P(English teacher | 21-30 years old) = 4/14 = 0.2857

Therefore, required probability is 0.2857

b) P(31-40 years old | Science teacher) = 3/10 = 0.3

Therefore, required probability is 0.3

c) P(51-60 years old | math teacher) = 2/12 = 0.1667

Therefore, required probability is 0.1667

d) P(math teacher | 51-60 years old) = 2/6 = 0.3333

Therefore, required probability is 0.3333

e) Answers, to c) and d) are not same.

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