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Which of the following count the number of good cases when doing pairwise analysis? (a) count.pairwise (b) count() + (c) anova.para() (d) count.poly() I have been asked this question during an interview. My enquiry is from Linear Regression topic in division Commands, Packages, Visualizing Data and Linear Regression of R Programming Select the correct answer from above options

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Right choice is (a) count.pairwise For explanation I would say: Pairwise comparison generally is any process of comparing entities in pairs to judge which of each entity is preferred.

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