Statistics Class 11 Maths | NCERT Solutions Chapter 15 | Exercise 15.3 Questions Miscellaneous

Timestamp:
00:00 Introduction
01:07 NCERT Ex 15.3 Q1
19:42 NCERT Ex 15.3 Q2
29:50 NCERT Ex 15.3 Q3
34:17 NCERT Ex 15.3 Q4
40:02 NCERT Ex 15.3 Q5
43:15 NCERT Misc. Ex Q1
51:56 NCERT Misc. Ex Q2
53:28 NCERT Misc. Ex Q3
1:00:03 NCERT Misc. Ex Q4
1:01:49 NCERT Misc. Ex Q5
1:09:51 NCERT Misc. Ex Q6
1:13:27 NCERT Misc. Ex Q7

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[MrFBhat]

Use 1/n√n × sum of xi² - (Sum of xi)²
To get standard deviations In Q5 Miscellaneous

[Akshay-ylyt]

Pls justify calculation part of standard deviation in part one of question 5 of miscellaneous, I'm Getting 2.023...