सूची-I को सूची-II से सुमेलित कीजिए: सूची-I (चर का प्रकार) A. खंडित / विविक्त (Discrete) B. सतत (Continuous) C. क्रमसूचक (Ordinal) D. नाममात्र / नामित (Nominal) सूची-II (उदाहरण) I. सामाजिक-आर्थिक स्थिति (निम्न, मध्यम, उच्च) II. किसी व्यक्ति का लिंग III. सिक्का उछाले जाने की संख्या IV. किसी व्यक्ति की लंबाई नीचे दिए गए विकल्पों में से सही उत्तर चुनिए:

Given below are two statements: one is labeled as Assertion (A) and the other is labeled as Reason (R). Assertion (A): Though ex-post facto research examines cause and effect relationships, it is not part of experimental research. Reason (R): In ex-post facto research, the effect or change in the independent variable has already occurred and cannot be manipulated. In the light of the above statements, choose the most appropriate answer from the options given below:

Given below are two statements: one is labeled as Assertion (A) and the other is labeled as Reason (R). Assertion (A): In non-probability sampling, the units are selected at the discretion of the researcher. Reason (R): Non-probability samples do not require a sampling frame. In the light of the above statements, choose the most appropriate answer from the options given below: