The class midpoint is also known as: MCQ with Answer and Explanation

The class midpoint is also known as:
A. Class interval
B. Class frequency
C. Class mark
D. Class limit
Answer: Option C
Solution (By JKSSB Mock Tests)
Class mark = (lower limit + upper limit)/2.

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Practice More Statistics Questions

Question #1
A researcher studying literacy rates in rural India collects data by personally visiting villages and conducting face-to-face interviews. This approach exemplifies:
A. Secondary data collection through indirect oral investigation
B. Primary data collection through mailed questionnaires
C. Secondary data collection from census reports
D. Primary data collection through direct personal investigation

Correct Answer: Option D


Explanation:
Direct personal investigation involves the investigator collecting data firsthand through direct interaction with respondents, which is a method of primary data collection.

This question belongs to: Accountancy and Statistics Statistics
Question #2
Which of the following is NOT a recommended practice for ordering questions in a questionnaire?
A. Placing demographic questions at the beginning regardless of sensitivity
B. Grouping questions on similar topics together
C. Progressing from general to specific questions
D. Starting with easy, non-sensitive questions to build rapport

Correct Answer: Option A


Explanation:
Demographic questions, especially sensitive ones like income or caste, are often placed at the end to avoid respondent discomfort early in the survey, which could lead to dropouts.

This question belongs to: Accountancy and Statistics Statistics
Question #3
A questionnaire should generally begin with:
A. Leading questions
B. Ambiguous questions
C. Simple and general questions
D. Sensitive and personal questions

Correct Answer: Option C


Explanation:
Starting with simple, non‑threatening questions builds rapport and encourages the respondent to continue.

This question belongs to: Accountancy and Statistics Statistics