Question

State whether the following statements are true or false:

1) Arrangement of data in rows and columns is called classification of data.

2) Diagram represent the tabulated data in visual form.

3) Frequency polygon and frequency curve both are same.

4) Histogram gives a graphical presentation of continuous frequency distribution.

5) A diagram is an alternative to table.

6) Graphs are said to be more technical.

Answer 1

1. This statement is false.
Explanation
Arrangement of data in rows and columns is known as tabulation of data and not classification of data. Classification of data means segmenting information in a certain predefined manner.

2. This statement is true.
Explanation:
A diagram refers to a two-dimensional geometric figure that represents information in a visual form. Statistical diagrams include pie charts and bar graphs. These diagrams help us to easily interpret data.

3. This statement is false.
Explanation:
A frequency polygon and a frequency curve are not the same. A frequency polygon is a straight line curve obtained by joining the mid points of the rectangular blocks of a histogram. On the other hand, a frequency curve is a smooth curve drawn with a free hand by joining the points that represent data.
In other words, a frequency polygon is drawn by joining points by a straight line and a frequency curve is drawn by a smooth hand.

4. This statement is true.
Explanation:
A histogram refers to a visual representation of data using a set of vertical rectangles representing class frequencies. It is used to represent a continuous frequency distribution in a graphical manner by depicting classes in the form of rectangular bars.

5. This statement is false.
Explanation:
A diagram is not an alternative to table. It is, in fact, a two-dimensional geometric figure that helps us to interpret a table in an easy manner. Both a table and a diagram have their own relevance.

6. This statement is true.
Explanation:
Graphs are generally said to be more technical and accurate compared to diagrams. This is because graphs give a more accurate picture of the given data. Also, they are much easier to understand and interpret.