We know that d(i) = x(i) - a
But how can we know that what is a?
Please tell me
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2
Answer:
A means assumed mean
U could take any value of a but its more suitable and appropriate to take the middlemost value of fi given in the frequency table.......
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Answered by
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hey mate,
'a' is nothing but the assumed mean of the observation. you may choose any of the observations in 'x(i)' but your final answer will be the same in every case.
please try this once for your own assurance....
...hope this helps....
'a' is nothing but the assumed mean of the observation. you may choose any of the observations in 'x(i)' but your final answer will be the same in every case.
please try this once for your own assurance....
...hope this helps....
Which should I choose as the middlemost
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if there are even no. of values such as 6 in your case, you can take either the 3rd term or the 4th term. similarly in the case of 10 terms, you can take either the 5th term or the 6th term...
hope you understand...
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