Page 156 - Maths Skill - 6

154 Maths

DIFFERENCE BETWEEN HORIZONTAL BAR GRAPH AND VERTICAL BAR GRAPH
Apart from the obvious orientation of the bars, the key difference between a horizontal and vertical bar graph
depends upon the type of data being presented and the message that needs to be conveyed.
Horizontal bar graphs are ideal for comparing data categories with the long name or labels. These types of work
well when we have many data categories as they can accommodate a significant amount of text without crowding
the chart or taking away from the key metrics. They are also useful when comparing two or more values as their
length is easy to compare. We might opt for a horizontal bar graph if we have big numbers, also vertical bar
graph are ideal for displaying changes in quantity over a period of time. They are particularly useful for showing
trends, making comparison between different group of data and high lighting the differences between different
data points.
Five ways to use a horizontal bar chart.
1. Comparing data categories with long names or labels.
2. Showing the distribution of frequencies within a given category.
3. Demonstrating the size of various data points.
4. Comparing values across different data categories.
5. Displaying rankings or orderings.

ASSESSMENT TIME

COMPETENCY BASED QUESTIONS C. Write ‘T’ for true and ‘F’ for false statements

A. Multiple-Choice Questions 1. Bar graph is a pictorial representation of data.
1. A collection of numerical facts is called:
(i) observation (ii) data 2. An array is the data arranged in ascending order

(iii) range (iv) frequency only.

2. The vertical bars are used to mark:
D. Case Study Based Questions
(i) tally (ii) data
(iii) statistic (iv) none of these Students of class VI surveyed in their class and
recorded the shoe size of each student. The following
3. When a data is represented in the form of bar graph represents the data for different sizes of
pictures, it is called: shoes worn by the students in a school. Read the

(i) frequency table (ii) tally mark graph carefully and —
(iii) pictograph (iv) none of these
400
B. Fill in the Blanks 350

1. The numerical facts collected from an 300
250
observation is called ________________. Number of Students 200

2. ________________ data is the collection of 150
observation initially. 100
50
3. In the bar graph, the ________________ of the 0 4 5 6 7 8
bars is uniform throughout. Class