Math, asked by sowmiyayahoocom, 1 year ago

what is wrong with my ans

Attachments:

QGP: You have taken "Mean" as 50, which is also the Assumed Mean. Are you sure the actual Mean is 50 as well?
sowmiyayahoocom: ya
sowmiyayahoocom: it is gn in question itself

Answers

Answered by Shubhendu8898
3
Hi,.
All the calculations are correct.
as you got sum of fi*vi = 4-x+y.
but while putting it in formula you wrote it as 48.....
...see picture ...
equations should be ,:-
x+y= 52.
and,.
x-y= 4.
solving it we get .
y= 24.
and
x= 28.....
Attachments:

sowmiyayahoocom: ohhhhh a great mistake
sowmiyayahoocom: tqqqqq soooo much
Shubhendu8898: no problem!! it's common
QGP: Oh Great! Even I missed that :)
Shubhendu8898: :-)
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