Variable Type Matching Solution

This question requires matching four types of variables (List I) with their appropriate examples (List II).

Identifying Variable Types and Examples

The correct pairings, based on the provided answer key, are established as follows:

• a. Artificially discrete variable matches with 4. Admission test results in terms of admitted/not-admitted.
• b. Continuous variable matches with 1. Neuroticism.
• c. Qualitative variable matches with 2. Voice pitch.
• d. Real discrete variable matches with 3. Gender.

Explanation of Variable Matches

• Artificially Discrete Variable & Admission Test Results: The outcome of admission tests (admitted/not-admitted) creates distinct categories. This can be viewed as artificially creating discrete outcomes from potentially underlying continuous data or processes.
• Continuous Variable & Neuroticism: Neuroticism is a psychological trait measured on scales that typically yield scores representing a range of values, making it a continuous variable.
• Qualitative Variable & Voice Pitch: Voice pitch is a measurable frequency. In this context, it is categorized as a qualitative variable, implying classification into distinct groups (e.g., high/low) rather than continuous measurement representation.
• Real Discrete Variable & Gender: Gender is represented by distinct categories. It is classified here as a real discrete variable, signifying distinct, separate values.

Conclusion

The code that correctly represents these matchings (a-4, b-1, c-2, d-3) corresponds to Option B.

Final Answer: The correct option is B.