A researcher studying literacy rates in rural India collects data by personally visiting villages and conducting face-to-face interviews. This approach exemplifies: MCQ with Answer and Explanation

A researcher studying literacy rates in rural India collects data by personally visiting villages and conducting face-to-face interviews. This approach exemplifies:
A. Primary data collection through direct personal investigation
B. Secondary data collection from census reports
C. Secondary data collection through indirect oral investigation
D. Primary data collection through mailed questionnaires
Answer: Option A
Solution (By JKSSB Mock Tests)
Direct personal investigation involves the investigator collecting data firsthand through direct interaction with respondents, which is a method of primary data collection.

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Practice More Statistics Questions

Question #1
The sum of squares of deviations from the mean is:
A. Equal to the variance
B. Zero
C. Maximum
D. Minimum

Correct Answer: Option D


Explanation:
The sum of squared deviations from the mean is minimum; from any other point it would be larger.

This question belongs to: Accountancy and Statistics Statistics
Question #2
Gross Reproduction Rate (GRR) considers only:
A. Infant deaths
B. Male births
C. Female births
D. Total births

Correct Answer: Option C


Explanation:
GRR measures the average number of daughters a woman would bear in her reproductive life.

This question belongs to: Accountancy and Statistics Statistics
Question #3
The empirical relationship between mean, median, and mode for a moderately skewed distribution is:
A. Mean - Mode = 3(Mean - Median)
B. Mode = 2Median - Mean
C. Mean = (Mode + Median)/2
D. Median = (Mean + Mode)/2

Correct Answer: Option A


Explanation:
The empirical formula is Mean - Mode = 3(Mean - Median) or Mode = 3Median - 2Mean.

This question belongs to: Accountancy and Statistics Statistics