Question

Fill in the blanks by using proper substitutes given in the bracket.

1) __________ is an orderly arrangement of data in rows and columns.
(Diagrams/Table/ Bar/ Histogram)

2) __________is a visual form of presenting tabulated data.
(Diagram/Picture/Frequency distribution/Bar)

3) Vertical rectangles representing class frequencies in a frequency distribution is called______
(Histogram/ Bar diagram/ Pie diagram/ Frequency polygon)

4) A frequency polygon is a ______ line curve.
(straight line/freehand/ joint/multi-dimensions)

5) _________ diagrams are used for comparisons.
(Multiple bar, Simple bar/ Sub-divided/ Percentage Bar)

Answer 1

1. Table is an orderly arrangement of data in rows and columns.
Explanation:
A table refers to an orderly arrangement of data under specified rows and columns. Such a formulation of table helps in the easy presentation of data.

2. Diagram is a visual form of presenting tabulated data.
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. Vertical rectangles representing class frequencies in a frequency distribution is called histogram.
Explanation
A histogram is a visual representation of data using a set of vertical rectangles representing class frequencies. It is a two-dimensional figure that emphasises both the lengths and widths of the rectangles.

4. A frequency polygon is a straight line curve.
Explanation
A frequency polygon is a straight line curve obtained by joining the midpoints of the rectangular blocks of a histogram. It is a graph that depicts a frequency distribution.

5. Multiple bar diagrams are used for comparisons.
Explanation
Multiple bar diagrams are used to represent and compare two or more sets of interrelated data in a single graph. In such diagrams, different colours and designs are used to represent bars.