Measure of Dispersion | Combined Mean and Standard Deviation | BBS 1st Year

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Thank you so much for hard work sir ...😊

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Thank you sir

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thank you sir🤗

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Than ku sir 👍🙏

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3 ota N ,3 ota S.D diyakoma combined standard deviation ko formula k Hunxa sir?

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Thank you for your Very useful class sir ❤️❤️🙏🙏

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new book januka publication ko book ko ne question banaunuananananana -plz sir

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