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Examples
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Example 6 (Normal Method)
Example 6 (Shortcut Method) Important
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Example 13 Deleted for CBSE Board 2023 Exams
Example 14 Important Deleted for CBSE Board 2023 Exams
Example 15 Important Deleted for CBSE Board 2023 Exams
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Last updated at Sept. 6, 2021 by Teachoo
Maths Crash Course - Live lectures + all videos + Real time Doubt solving!
Example 9 Find the variance and standard deviation for the following data: First we will calculate mean Now, finding variance 2 = 1374 =30 Variance ( 2) = 2 = 1374 30 = 45.8 Standard deviation ( ) = 45.8 = 6.76