P. 176 Incorrect logic

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P. 176 Incorrect logic

Postby jcutts » Sun Mar 27, 2016 3:59 pm

Question 3, at the top of the page, is not logical as it stands. It should be changed as follows. The characters in bold are the ones that change.

Change: A and B are found together. A, B, and C are also found together. Therefore, A must cause C.

To: A and B are found together. A, B, and C are also found together. Therefore, B must cause C.

Change: This eliminates B as a cause of C and strengthens A as the cause.

To: This eliminates A as a cause of C and strengthens B as the cause.
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