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Tamil Nadu Board of Secondary EducationHSC Commerce Class 11

Suppose one person is selected at random from a group of 100 persons are given in the following Title Psychologist Socialist Democrat Total Men 15 25 10 50 Women - Business Mathematics and Statistics

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Question

Suppose one person is selected at random from a group of 100 persons are given in the following

Title Psychologist Socialist Democrat Total
Men 15 25 10 50
Women 20 15 15 50
Total 35 40 25 100

What is the probability that the man selected is a Psychologist?

Sum
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Solution

Total number of men = 50

Number of men psychologist = 15

The probability of selecting a psychologist given that a man has been already selected is `15/50 = 3/10`

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Chapter 8: Descriptive Statistics and Probability - Exercise 8.2 [Page 203]

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Samacheer Kalvi Business Mathematics and Statistics [English] Class 11 TN Board
Chapter 8 Descriptive Statistics and Probability
Exercise 8.2 | Q 5 | Page 203
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