How do we get the assume mean A in the step deviation method ? 

Asked by jameelraza11 | 3rd Sep, 2015, 08:14: PM

Expert Answer:

space A s s u m e d space m e a n space i s space t a k e n space a c c o r d i n g space t o space t h e space c o n v e n i e n c e space s o space t h a t space t o space m i n i m i z e space t h e space c a l c u l a t i o n s. C o n s i d e r space t a k i n g space t h e space m i d d l e space o f space t h e space d a t a space v a l u e s space a s space t h e space a s s u m e d space m e a n. C o n s i d e r space t h e space f o l l o w i n g space e x a m p l e colon
 
Solution:
I n space t h e space a b o v e space e x a m p l e comma space c l a s s space m a r k s space a r e space 35 comma 45 comma 55 comma 65 comma 75 space a n d space 85. H e n c e space y o u space c a n space t a k e space t h e space m i d d l e space v a l u e comma space t h a t space i s space e i t h e r space i t space c a n space b e space 55 space o r space 65. I n space t h i s space p r o b l e m space w e space h a v e space a s s u m e d space t h e space m e a n space a s space 65.

Answered by Vimala Ramamurthy | 4th Sep, 2015, 09:01: AM

Application Videos

This video explains the Method of finding missing value of the given distri...

This videos explains the concept of Mean of a Continuous Frequency Distribu...

Concept Videos

This video explains how to calculate arithmetic mean of grouped data by usi...

This video explains how to calculate arithmetic mean of grouped data by usi...

This video explains how to calculate arithmetic mean of grouped data by usi...

Practice Test

Webinar

Pre Board Assessment
All Questions Ask Doubt