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

• Median

• Mode

• Arithmetic Mean

• Arithmetic Mean

• Arithmetic Mean

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

• N

• O

• None of the above

Comment on whether the following statements are True or False.

A.

The sum of deviation of items from median is zero.

B.

An average alone is not enough to compare series.

C.

Arithmetic mean is a positional value.

D.

Arithmetic mean is a positional value.

E.

Median is unduly affected by extreme observations.

The most suitable average for qualitative measurement is:

• Arithmetic mean 

• Median

• Mode

• Mode

• Mode

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.