[Video Solution] Let the mean and standard deviation of marks of class A of 100 students be re... | ASPIRE STUDY

Name: [Video Solution] Let the mean and standard deviation of marks of class A of 100 students be re... | ASPIRE STUDY
Uploaded: 2026-10-07T22:41:46+00:00
Description: Let the mean and standard deviation of marks of class A of 100 students be respectively 40 and α\ (>\,0), and the mean and standard deviation of marks of class B of n students be respectively 55 and 30-α. If the mean and variance of the marks of the combined class of 100+n students are respective... | Watch the step-by-step video solution for this NIMCET PYQ.

Let the mean and standard deviation of marks of class A of 100 students be respectively 40 and α\ (>\,0), and the mean and standard deviation of marks of class B of n students be respectively 55 and 30-α. If the mean and variance of the marks of the combined class of 100+n students are respective... | Watch the step-by-step video solution for this NIMCET PYQ.

Published: 2026-10-07T22:41:46+00:00 Thumbnail: Open Page: https://www.myaspirestudy.com/library/video/13295/let-the-mean-and-standard-deviation-of-marks-of-class-a-of-100-students-be-re

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