Advertisements
Advertisements
Question
Study the double bar graphs given below and answer the following questions:
- Which sport is liked the most by Class VIII students?
- How many students of Class VII like Hockey and Tennis in all?
- How many students are there in Class VII?
- For which sport is the number of students of Class VII less than that of Class VIII?
- For how many sports students of Class VIII are less than Class VII?
- Find the ratio of students who like Badminton in Class VII to students who like Tennis in Class VIII.
Advertisements
Solution
a. By observing the graph, we can say that the height of the bar corresponding to cricket for class VIII student is largest. Hence, cricket is liked the most by class VIII students.
b. Height of bar corresponding to hockey and tennis for class VII are 7 and 10 respectively. So, total students of class VII who like hockey and tennis = 7 + 10 = 17
c. Total number of students in class VII = Sum of heights of all the bars for class VII
= 7 + 16 + 18 + 10 + 14
= 65
d. The sport for which number of students of class VII is less than that of class VIII will be that for which height of bar is less.
By observing the graph in case of cricket height of bar is less for class VII as compared to class VIII.
e. We can clearly see from the double bar graph for Hockey, Football, Tennis and Badminton, the number of students are less for class VIII as compared to class VII.
f. Number of students who like badminton in class VII = 14 and number of students who like tennis in class VIII = 7
∴ Required ratio = 14 : 7 = 2 : 1
APPEARS IN
RELATED QUESTIONS
Use the bar graph (see the given figure) to answer the following question.
Which is the most popular pet?
Number of children in six different classes are given below. Represent the data on a bar graph.
| Class | Fifth | Sixth | Seventh | Eighth | Ninth | Tenth |
| Number of children | 135 | 120 | 95 | 100 | 90 | 80 |
- How would you choose a scale?
- Answer the following questions:
- Which class has the maximum number of children? And the minimum?
- Find the ratio of students of class sixth to the students of class eight.
The following table shows the number of Buses and Trucks in nearest lakh units. Draw percentage bar-diagram. (Approximate the percentages to the nearest integer)
| Year | No. of Trucks | No. of Buses |
| 2005-2006 | 47 | 9 |
| 2007-2008 | 56 | 13 |
| 2008-2009 | 60 | 16 |
| 2009-2010 | 63 | 18 |
The graph given below gives the actual and expected sales of cars of a company for 6 months. Study the graph and answer the questions that follow.
- In which month was the actual sales same as the expected sales?
- For which month(s) was (were) the difference in actual and expected sales the maximum?
- For which month(s) was (were) the difference in actual and expected sales the least?
- What was the total sales of cars in the months–Jan, Feb. and March?
- What is the average sales of cars in the last three months?
- Find the ratio of sales in the first three months to the last three months
The graph given below shows the marks obtained out of 10 by Sonia in two different tests. Study the graph and answer the questions that follow.
- What information is represented by the axes?
- In which subject did she score the highest in Test I?
- In which subject did she score the least in Test II?
- In which subject did she score the same marks in both the Tests?
- What are the marks scored by her in English in Test II?
- In which test was the performance better?
- In which subject and which test did she score full marks?
In a bar graph, each bar (rectangle) represents only one value of the numerical data.
To represent the population of different towns using bar graph, it is convenient to take one unit length to represent one person.
Read the bar graph given below and answer the following questions:
Scale: 1 unit = 50 students
- What information is given by the bar graph?
- In which year is the number of students maximum?
- In which year is the number of students twice as that of 2001 – 02?
- In which year did the number of students decrease as compared to previous year?
- In which year is the increase in number of students maximum as compared to the previous year?
The representation of data with bars of uniform width is called ______.
Study the double bar graph and answer the questions that follow:
- What information does the double bar graph represent?
- Find the total number of boys in all sections of Class VII.
- In which sections, the number of girls is greater than the number of boys?
- In which section, the number of boys is the maximum?
- In which section, the number of girls is the least?
