367MathematicsMedium
The sum of the deviations about the mean is always________?
ANegative
BRange
CZero
DTotal Standard Deviation
EPositive
Correct answer
C. Zero
Explanation
The correct answer is Zero.
Correct answer
C. Zero
Explanation
The correct answer is Zero.
If n = 400 and P=.69 then 90% C.I for P is ________?
A contractor employs 20 male, 15 female and 5 children in his factory. Male wages are Rs. 10 per day, female Rs. 8 per day, and children Rs. 3 per day. The weighted x of wages paid per day will be________?
A continuous random variable which can assume all possible values on scale in a given ________?
Which mean is most effected by extreme values?