In a class of 100 students, 60 play cricket, 50 play football, and 30 play both. Probability a random student plays neither is: MCQ with Answer and Explanation

Question
In a class of 100 students, 60 play cricket, 50 play football, and 30 play both. Probability a random student plays neither is:
A. 0.1
B. 0.3
C. 0.4
D. 0.2
Answer: Option D
Solution (By JKSSB Mock Tests)
P(C∪F) = 60+50-30 = 80. Playing neither = 100 - 80 = 20; probability = 20/100 = 0.2.
This question belongs to: Accountancy and Statistics Statistics
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Question #1
Classification of data based on characteristics like literacy, religion, or occupation is known as:
A. Quantitative classification
B. Qualitative classification
C. Chronological classification
D. Geographical classification
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Correct Answer: Option B

Explanation:
Qualitative classification groups data according to attributes or characteristics that cannot be measured numerically, such as literacy status, religion, or occupation type.
This question belongs to: Accountancy and Statistics Statistics
Question #2
A questionnaire is said to be structured if:
A. It has a fixed set of questions with predetermined response options
B. It allows the interviewer to change questions
C. It is very long
D. It contains only open-ended questions
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Correct Answer: Option A

Explanation:
Structured questionnaires use standard questions and answer choices, facilitating easy coding.
This question belongs to: Accountancy and Statistics Statistics
Question #3
Data compiled from several sources and presented in a unified manner is an example of:
A. Secondary data
B. Raw data
C. Primary data
D. Experimental data
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Correct Answer: Option A

Explanation:
Compiled data from existing sources is secondary data.
This question belongs to: Accountancy and Statistics Statistics
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