A bag contains 5 red, 4 blue, 3 green balls. Two balls are drawn without replacement. Probability that both are same color is: MCQ with Answer and Explanation

Question
A bag contains 5 red, 4 blue, 3 green balls. Two balls are drawn without replacement. Probability that both are same color is:
A. 15/66
B. 20/66
C. 19/66
D. 12/66
Answer: Option C
Solution (By JKSSB Mock Tests)
Total ways C(12,2)=66. Favorable: C(5,2)+C(4,2)+C(3,2) = 10+6+3=19. Probability=19/66.
This question belongs to: Accountancy and Statistics Statistics
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Practice More Statistics Questions

Question #1
The CPI (Rural) and CPI (Urban) are compiled by:
A. Central Statistics Office (NSO)
B. NITI Aayog
C. RBI
D. Labour Bureau
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Correct Answer: Option A

Explanation:
The National Statistical Office (NSO), under MoSPI, compiles the CPI for rural, urban, and combined.
This question belongs to: Accountancy and Statistics Statistics
Question #2
In Bayes' theorem, the term 'likelihood' refers to:
A. P(B)
B. P(A|B)
C. P(B|A)
D. P(A)
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Correct Answer: Option C

Explanation:
Likelihood is the probability of the evidence given the hypothesis.
This question belongs to: Accountancy and Statistics Statistics
Question #3
Which of the following sources is considered an unpublished source of secondary data?
A. Census of India reports
B. Reserve Bank of India (RBI) bulletins
C. World Bank development reports
D. Financial records maintained internally by a private company
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Correct Answer: Option D

Explanation:
Internal company records are not available to the general public, making them unpublished secondary data.
This question belongs to: Accountancy and Statistics Statistics
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