the mean of 15 observation is 25. later on it was found that one observation was taken by mistake as 20 instead of 50. then the correct mean is _______ .
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50 minus 20 =30
Thus add 30 to 25
Thus add 30 to 25
neel84:
OK
u can check my calculation
how raj?
see my calculation i did it
checking
m not so sure you could be write
right
i did it last year
then u must be right
good night
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Hope this will help you
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