Math, asked by vishal095, 11 months ago

mean of 35 observation is 75 the mean of first 18 observation is 70 and the mean of last 18 observation is 80 find the 18th observation

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Answered by sprao534

4

Please see the attachment

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Answered by seemasssingh4p893y4

1

here is your answer

I hope it will help u

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