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Question
Choose the correct alternative.
byx = ______
Options
`"r" sigma_"x"/sigma_"y"`
`"r" sigma_"y"/sigma_"x"`
`1/"r" sigma_"y"/sigma_"x"`
`1/"r" sigma_"x"/sigma_"y"`
Solution
byx = `underline ("r" sigma_"y"/sigma_"x")`
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