Line Charts – Data Interpretation – MBA CUET PG – Notes & Practice Questions

Line Graphs are very useful in representing the data related to time-series and frequency distribution. These graphs are also very useful in determining trends, rate of change and for illustrating comparisons with respect to some time series. A time series is an arrangement of data in chronological order. Line graphs are drawn by lines connecting the dots which show the value of a variable. It indicates the variation of one parameter with respect to another. It determines trends and rate of change over the time. These graphs are easier to interpret as we can easily see data movement in these graphs due to the use of lines.

Practice Questions

Direction (1-5): Line graph given below shows percentage of girls out of total students in 5 different classes (A, B, C, D, and E). Study the graph carefully and answer the questions given below.

Total number of students in each class is 300.

Total number of students in any class total number of (boy girl) student in that class.

1. The number of girls in class D is how many more or less than the number of girls in class E?

(a) 51

(b) 52

(c) 44

(d) 45

2. Find the average number of boys in class A, B and D?

(a) 159

(b) 180

(c) 165

(d) 174

3. In which class the number of girls is lowest?

(a) Class C

(b) Class B

(c) Class D

(d) Class A

4. Total girls in class E is approx. what percent of the number of boys in class A?

(a) 72%

(b) 80%

(c) 59%

(d) 65%

5. Find out the difference between the total number of boys and total number of girls in all the classes together?

(a) 300

(b) 312

(c) 332

(d) 348