NDA2012MathematicsStatisticsActual
The arithmetic mean of numbers a, b, c, d, e is M What is the value of (a- M )+(b- M )+(c- M )+(d- M )+(e- M ) ?
Options
- AM
- Ba+b+c+d+e
- C0
- D5 M
Correct answer
C. 0
Step-by-step solution
Mean = a+b+c+d+e 5 = M New mean aligned & = (a- M )+(b- M )+(c- M )+(d- M )+(e- M ) 5 & = ( a+b+c+d+e 5 )- M = M - M aligned New mean =0 .