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Science,English,and math 4th

No.265　21/04/07 21:55
燻し銀三 ( 60代 ♂ IJ7P0b ) あ+あ-

【How to find a way of useful information】

《There is a person who reads a newspaper. Is its annual income high?》

3 Both of X and Y are results from Z which is a mutual cause of both X and Y.

4 There is a more complicated relation.

5 It’s an accidental thing.

As to 1 and 2, let’s suppose that there was a positive mutual relation between buying newspaper and annual income. Then we may have expected that if reading the newspaper, our annual income may will.

But there is a possibility that it’s not reading newspaper leads to be high annual income, but being high annual income leads to...

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