Question

A researcher collects multiple random samples from a population and calculates the sample means. He notices that the means vary across different samples. What is the primary reason for this variation?

A Measurement errors in data collection
B Sampling variation due to random chance
C Incorrect data preprocessing
D Bias introduced by the researcher
E Inadequate sample size
Practice Next

Hey! Ask a query

🎓
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
  • 200 Questions with Detailed Solutions
  • Section-wise Coverage (GA, English, Quant & Reasoning)