लॉरेंज वक्र (Lorenz curve) का उपयोग करके किसी वितरण की किस विशेषता को दर्शाया जा सकता है?

Match the Groups of Statistical Analysis (List I) with their corresponding representative Tests/Measures (List II): List I (Group of Analysis) a. Unidimensional analysis b. Multivariate analysis c. Inferential analysis d. Bivariate analysis List II (Test/Measure) i. Testing of hypothesis ii. Measure of central tendency iii. Two-way ANOVA iv. Canonical analysis Choose the correct option from the following:

In an F-test context, if the 'between-groups variance' is 200 and the 'within-groups variance' is 50, what is the value of the F-ratio? (Note: The original question incorrectly labels this parameter as 't-value'.)