Statistical Representation of DataPYQ Sept 25Question 4165 of 295
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After a singing competition on a live TV show, the winner is selected according to the number of likes each candidate has received on a messaging app. This method of data collection is known as ____________ sampling.

Options

ARandom
BProbabilistic
CPurposive
DMulti-Stage
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Correct Answer

✅ Option c — Purposive

All Options:

  • ARandom
  • BProbabilistic
  • CPurposive
  • DMulti-Stage

Detailed Solution & Explanation

Let us analyze the sampling method described in the question:
1. **Method of selection**: The likes are submitted by viewers who choose to participate. This is not a random selection of the entire television audience or the general public.
2. **Types of Sampling**:
- **Random / Probabilistic Sampling**: Every unit in the population has a known, non-zero probability of being selected.
- **Purposive / Non-probabilistic Sampling**: The sample is selected based on convenience, self-selection, or the specific purpose of the study. In this case, the sample consists of self-selected users who voluntary send likes.
In textbooks, such convenience or self-selected data collection methods are categorized under non-probability sampling, specifically **Purposive sampling** (or convenience sampling), where the sample is not representative of the entire population because it depends on the active participation of a specific group.
Hence, **Option C** is the correct answer.

About This Chapter: Statistical Representation of Data

Paper

Paper 3: Quantitative Aptitude

Weightage

2-4 Marks

Key Topics

Data, Frequency Distribution, Graphical Representation

This chapter covers Data, Frequency Distribution, Graphical Representation and is part of Paper 3: Quantitative Aptitude in the CA Foundation exam.

View Official ICAI Syllabus

Exam Strategy Tip

This topic carries 2-4 Marks weightage. Focus on understanding core concepts rather than memorizing.

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