Q1 of 52 Page 23

Explain the reading and interpretation of bar graphs.

The first step in reading a bar graph is to Know what does it represent. For this we read the caption which is generally written at the bottom of horizontal line x-axis and adjacent to vertical line y-axis.

After this we understand the scale of the graph in order to know the precise value of the given data.


After reading the bar graph, one must draw conclusions from it. Drawing various conclusions from a given bar graph is referred as the interpretation of the bar graph.


More from this chapter

All 52 →
17

Read the bar graph given in Fig. 23.21 and answer the following questions:


(i) What is the information given by the bar graph?


(ii) What is the number of families having 6 members?


(iii) How many members per family are there in the maximum number of families? Also tell the number of such families.


(iv) What are the number of members per family for which the number of families are equal? Also, tell the number of such families?

 18

Read the bar graph given in Fig. 23.22 and answer the following questions:


(i) What information is given by the bar graph?


(ii) Which Doordarshan centre covers maximum area? Also tell the covered area.


(iii) What is the difference between the areas covered by the centres at Delhi and Bombay?


(iv) Which Doordarshan centres are in U.P. State? What are the areas covered by them?

 2

Read the following bar graph and answer the following questions:


(i) What information is given by the bar graph?


(ii) In which year the export is minimum?


(iii) In which year the import is maximum?


(iv) In which year the difference of the values of exports and imports is maximum?

 3

The following bar graph shows the results of an annual examination in a secondary school.

Read the bar graph (Fig. 23.28) and choose the correct alternative in each of the following:



(i) The pair of classes in which the results of boys and girls are inversely proportional are :


(a) VI, VIII (b) VI, IX


(c) VIII, IX (d) VIII, X


(ii) The class having the lowest failure rate of girls is


(a) VII (b) X


(c) IX (d) VIII


(iii) The class having the lowest pass rate of students is


(a) VI (b) VII


(c) VIII (d) IX