Form 4 Maths Variance and Standard Deviation

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What about if we just square fx direct

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[@ringsnepal1584]

hello dear miss you write Variance under the mean . is this variance is english word ?i am confused

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I understand now🥰

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So simple

[@Noor-t8e4v]

Mdm kwani huwezi square fx direct

[@JoyKorir-t7x]

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[@IsaacMukanda]

there is a small correction of the last frequency on the last class it is supposed to be 3 and you wrote 5

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[@abidjutt4446]

Hlo! Is standard deviations and standard error formula same?

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[@mohamudomar5828]

There is an formula for variance which is summation f(X-mean) squared divided by total frequency minus. Try this formula. Thank you

[@mohamudomar5828]

* another formula*

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[@alvinmuchiri801]

you made an error in the frequency when completing the table in the last row

[@FaithNdaiga]

It's not an error she used d mean and squared

[@user-Denis_Otto_MD]

Summation of freq =48 NOT 50.

[@OyekunlekaosaratOyebanke-yz9ko]

Answer is 17.219

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Wow, thank you🥰 amazing learner.

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wish i watched this before my exam which was this morning🥲 i love ur explanations, tqvm!!

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Thanks.

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nice

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