Measure of central tendency & dispersion – Test 1

A measure of central tendency means-
I. Representative of a set of data.
II. A single figure which is representative of whole distribution.
III. An average of a distribution.

“An average is an attempt to find one single figure to describe the whole of figures”. This definition is given by-

A measure of central tendency is a typical value around which other figures congregate”. This definition is given by-

“An average is a value which is typical or representative of a set of data”. This definition is given by-

Objectives and significance of statistical averages.

A measure of central tendency tries to estimate the-

Measures of central tendency for a given set of observations measures-
1. The scatteredness of the observations.
2. The central location of the observations.

Requisites of a good statistical average:-
(I) It need not be firmly defined.
(II)It should be easy to understand but difficult to compute.
(III)The average should depend upon each and every item of the series. however, some of the extreme items in the series can be ignored.

Requisites of a good statistical average:-

Which of the following is “Positional Average”?

Which of the following is “Positional Average”?
I.Mean
II.Median
III.Mode

Which of the following is “Mathematical Average”?

Which of the following is “Mathematical Average”?

_____ is defined as the sum of observations divided by the number of observations.

The words ‘mean’ or ‘average’ refers to –

Which of the following statement(s) is/are false?

The most commonly used measure of central tendency is –

Which of the following statements is true?

Weighted averages are considered when –

The value of the items are taken into consideration in the calculation of –

Simple average may be called as –

____ of a distribution is that value of the variant which divides it into two equal parts.

50% of actual value will be below and 50% of will be above for –

_____ is that value of the variant which repeats maximum number of times in a distribution and around which other observations are densely distributed.

Which of the following sentence is/ are wrong in relation to ‘mode’?