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555-605 (Medium)|   Statistics and Sets Problems|                        
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avigutman
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Schools: NYU Stern (WA)
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For each student in a certain class, a teacher adjusted the student’s 13 Feb 2022, 14:12
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Video solution from Quant Reasoning:
Subscribe for more: https://www.youtube.com/QuantReasoning? ... irmation=1
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For each student in a certain class, a teacher adjusted the student’s 22 Jul 2023, 02:26
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Adding doesn't change SD.
Multiplying changes by the factor multiplied.
So, 0.8x20 = 16. Ans B
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For each student in a certain class, a teacher adjusted the student’s 12 Aug 2025, 21:38
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