Math, asked by singhonkar4474, 11 months ago

Find the standard diviations for first 21 natural numbers

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Answered by Anonymous

1

Answer:

ur answer is in the ATTACHMENT

Attachments:

Answered by sanjana4320

1

Answer:

now we have to put the value of n in equation (i) and (ii)

Exi= (21*22)/2=231

Exi²=(21*22*43)/6=3311

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