Which average would be suitable in the following cases:

(i) Average size of readymade garments.

(ii) Average intelligence of students in a class.

(iii) Average production in a factory per shift.

(iv) Average wages in an industrial concern.

(v) When the sum of absolute deviations from average is least.

(vi) When quantities of the variable are in ratios.

(vii) In case of open ended frequency distribution.

The most suitable average for qualitative measurement is:

• Arithmetic mean 

• Median

   

• Mode

• Geometric mean

   

• Geometric mean

   

Which average is affect most by the presence of extreme items?

• Median

• Mode

   

• Arithmetic Mean

• Geometric Mean

• Geometric Mean

The algebraic sun of deviation of a set of n values from A.M. is =:

• N

• O

• None of the above