Question

Asked Oct 19, 2019

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I need help understanding how to solve b-d. I'm confused as to how they equal different solutions.

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Step 1

**b.**

Here the total number of persons belongs to S_{1}, *n(S _{1})* is 194.

The total number of persons who belongs T1 and S1, *n(T _{1} and S_{1})* is 115.

The probability that the randomly selected person belongs T1 given S1 can be calculated as follows.

Step 2

**c.**

Here the total number of persons belongs to S1, *n(T1)* is 190.

The total number of persons who belongs T1 and S1, *n(T1 and S1)* is 115.

The probability ...

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