Presentation of Data Test - 3

A shape with only two dimensions (such as width and height) and no thickness. Squares, Circles, Triangles, etc are two dimensional objects.

Salutation is not a part of table. It is a part of latter. For example  Dear Sir, Respected Madam,  etc.

A diagram in which the size of only one dimension i.e. length is fixed in proportion to the value of the data is called one dimensional diagram. Such diagrams are also popularly called bar diagrams.

Multiple bar diagrams are prepared by drawing two or more single bars corresponding to each year.

Frequently distribution can be framed from histogram. Frequently polygon and frequency curve can be prepared by converting the mid points of histogram.

Caption is one of the part of a table.  It is not a form of presentation of data.

Ambiguous title may lead to wrong understanding or different understanding of title by the users.

Presentation of data involves presenting raw facts and figures in the form of tables, charts and diagrams which is easy to understand for the users of data.

A shape with only two dimensions (such as width and height) and no thickness are called two dimensional diagrams.Squares, Circles, Triangles, etc are two dimensional objects.

Pie diagrams can be prepared by converting frequencies into angles in such a way that total of all angles should come equal to 360

Normal base line starts with zero,  if the data is far away from zero, it becomes very difficult to present the data in a graph which is far away from the point of origin,  therefore, a false base line is prepared.

For contacting a percentage bar graph,  data has to be converted in percentage form. Percentage bar diagrams have same length.

Histogram is one of the tool of presentation of data.  Other options are not used to present data.

For calculating volume,  height, length and breadth is required

Adjusted frequency of a class may be defined as the product of the frequency of corresponding class and the ratio of minimum class size to the class size. 

We use the concept of adjusted frequency distribution to draw histogram of the class intervals of different width. Using it the frequency of the class intervals are adjusted in order to make the frequencies of the each class intervals and the area of the corresponding bar representing the histogram of class intervals in equal proportion.

Data in the form of grouped frequency distributions are generally represented by frequency diagrams like histogram, frequency polygon, frequency curve and ogive.

Bar diagrams are very simple to understand and most suitable for presenting year wise data of sales, profits, etc of the business.

In line diagrams,  only one line passes through a vertex therefore it is a one dimensional diagram.

If we collect the marks of 50 students in a test of 100 marks paper,  we can present the data in the form of frequency distribution,  marks can be shown as 10-20, 20-30, etc and corresponding frequencies will be number of students.  If we do the total of frequencis we will get 50 students which is nothing but a number of elements in a data set.

Like a caption or column heading each row of the table has to be given a heading. The designations of the rows are also called stubs or stub items, and the complete left column is known as stub column. A brief description of the row headings may also be given at the left hand top in the table.

A table contains numerical data like population, income, production etc which is known as body of the table.

a pictograph is a graph that shows numerical information by using picture symbols or icon  to represent data sets. The advantage of using a pictograph is that it is easy to read

At the top of each column in a table a column designation is given to explain figures of the column. This is called caption

Example of geometric graphs are bar diagrams,  pie diagrams,  etc.

Component bar diagrams or charts , also called sub­diagrams, are very useful in comparing the sizes of different component parts (the elements or parts which a thing is made up of) and also for throwing light on the relationship among these integral parts. For example, sales proceeds from different products, expenditure pattern in a typical Indian family (components being food, rent, medicine, education, power, etc.), budget outlay for receipts and expenditures, components of labour force, population etc. Component bar diagrams are usually shaded or coloured suitably.