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Statistical Assistant 2025
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Math
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Question
Suppose A, B, and C are subsets of a universal set X. Which one of the following set identities is NOT universally valid?
Board:
JKSSB
A
n(AUB) = n(A-B)-n(A)+n(AnB)
B
n(A-B) = n(A)-n(AnB)
C
An(BUC)=(ANB)U(ANc)
D
AX(BnC)=(AXB)n(AXC)
Statistical Assistant 2025
Maths
Attempts:
94
• Right:
40
• Wrong:
54
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