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| 1. |
By which formula is combined arithmetic mean estimated? |
| Answer» <html><body><p>`barX_(12)(X_(1)+X_(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>)+...+X_(<a href="https://interviewquestions.tuteehub.com/tag/n-568463" style="font-weight:bold;" target="_blank" title="Click to know more about N">N</a>))/(N_(1)+N_(2))`<br/>`barX_(12)=(barX_(1)N_(1)+barX_(2)N_(2))/(N_(1)+N_(2))`<br/>`barX_(12)=(barX_(1)+barX_(2))/(N_(1)+N_(2))`<br/><a href="https://interviewquestions.tuteehub.com/tag/none-580659" style="font-weight:bold;" target="_blank" title="Click to know more about NONE">NONE</a> of these</p>Answer :<a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a></body></html> | |