Statistical Description Of Data - 4 - Free MCQ Practice Test with solutions,

Consecutive rectangles in a Histogram have no space in between

For the construction of grouped frequency distribution from ungrouped data we use

 In Histogram if the classes of unequal width then the heights of the rectangles must be proportional to the frequency densities. 

 In representing simple frequency distributions of a discrete variable

Class boundaries should be considered to be the real limits for the class interval

 “Cumulative Frequency” only refers to the

Most extreme values which would ever be included in a class interval are called

Frequency density is used in the construction of

Vertical bar chart may appear somewhat alike

In the construction of a frequency distribution, it is generally preferable to have classes of

 For determining the class frequencies it is necessary that these classes are

Divided bar chart is good for :

The number of observation falling within a class is called

 For the construction of a grouped frequency distribution 

In all Statistical and diagrams involving end points of classes

Tally marks determines

The number of errors in Statistics are

 The number of “ Frequency distribution” is

The graphical representation of a cumulative frequency distribution is called 

 When all classes have a common width 

An area diagram is 

 (Class frequency) / (width of the class) is defined as

 An approximate idea of the shape of frequency curve is given by 

Cumulative Frequency Distribution is a

A table has

In general the number of types of tabulation are

Unequal widths of classes in the frequency distribution do not cause any difficulty in the construction of

To find the number of observations less than any given value

Ogive is a