Determine which of the following alternatives is (are) true: I. The total number of people surveyed is 260 II. The probability that a person is female GIVEN that her contract is a term contract is 78.1%. III. 18.1% of the total corresponds to men with an indefinite-term contract. Select one: a. Only I b. Only II c. Only III d. I and II e. II and III

A First Course in Probability (10th Edition)
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Chapter1: Combinatorial Analysis
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The following table records the contractual status of a group of employees in a company. It is divided into professionals with permanent contracts, fixed-term employees and employees with fee-based contracts (external consultants). In addition, it is recorded whether they are men or women, as the case may be. 

 

Permanent Contract

Fixed Term Fee Slip
Men 48 25 13
Women 52 89 38

Determine which of the following alternatives is (are) true:

I. The total number of people surveyed is 260
II. The probability that a person is female GIVEN that her contract is a term contract is 78.1%.
III. 18.1% of the total corresponds to men with an indefinite-term contract.
Select one:
a. Only I
b. Only II
c. Only III
d. I and II
e. II and III

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Statement I is FALSE. Total Sum is 265, no 260.

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