If r = 0.5, ∑xy = 120, σ y = 8, ∑x² = 90, then value of n is equal to _____
CA Foundation · Quantitative Aptitude · RTP · September 2025
If r = 0.5, ∑xy = 120, σ y = 8, ∑x² = 90, then value of n is equal to _____
Suggested Answer and Working Notes:
Correct Answer: Option (B)
B. 10
Topics: Part-C: Statistics
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