Match the following for their association : Codes : I II III IVList – I List – II I. Chi-square Test 1. Variance II. T-test 2. Correlation III. Karl Pearson 3. Difference IV. F-test 4. Association
4 3 2 1
Each statistical tool is used to examine a particular kind of relationship or comparison.
I. Chi-square test: it tests whether two categorical (nominal) variables are associated or independent, using observed and expected frequencies. So I → 4 (Association).
II. T-test: it tests the significance of the difference between two means (for example, of two small samples). So II → 3 (Difference).
III. Karl Pearson: his product-moment coefficient (r) measures the degree and direction of linear correlation between two variables. So III → 2 (Correlation).
IV. F-test: it compares variances (the variance ratio), and is the basis of analysis of variance (ANOVA). So IV → 1 (Variance).
The matching I-4, II-3, III-2, IV-1 gives the code 4 3 2 1.
Hence, the answer is 4 3 2 1.
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