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प्रश्न
______ can be used to compare two collections of data.
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उत्तर
A double bar graph can be used to compare two collections of data.
Explanation:
A double bar graph is a type of bar graph that displays two sets of data side-by-side using two bars for each category. This visual representation makes it easy to compare values across the same categories for the two different datasets. For example, you might use a double bar graph to compare the number of boys and girls in different classes or the sales of two products over several months.
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संबंधित प्रश्न
Read the bar graph (see the given figure) which shows the number of books sold by a bookstore during five consecutive years and answer the questions that follow:
- About how many books were sold in 1989? 1990? 1992?
- In which year were about 475 books sold? About 225 books sold?
- In which years were fewer than 250 books sold?
- Can you explain how you would estimate the number of books sold in 1989?
Plot the points (2, 8), (7, 8) and (12, 8). Join these points in pairs. Do they lie on a line? What do you observe?
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 2007-2008 2008-2009 2009-2010 |
47 56 60 63 |
9 13 16 18 |
In the table given below, the information is given about roads. Using this draw a sub-divided and percentage bar diagram (Approximate the percentages to the nearest integer).
| Year | Permanent Roads ( Lakh km.) |
Temporary Roads ( Lakh km.) |
| 2000-2001 | 14 | 10 |
| 2001-2002 | 15 | 11 |
| 2002-2003 | 17 | 13 |
| 2003-2004 | 20 | 19 |
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
Use the bar graph (see the given figure) to answer the following question.
How many students have dog as a pet?
The bar graph given below represents approximate length (in kilometres) of some National Highways in India.
Study the bar graph and answer the following questions:
Scale: 1 unit length = 200 km
- Which National Highway (N.H.) is the longest among the above?
- Which National Highway is the shortest among the above?
- What is the length of National Highway 9?
- Length of which National Highway is about three times the National Highway 10?
The lengths in km (rounded to nearest hundred) of some major rivers of India is given below:
| River | Length (in km) |
| Narmada | 1300 |
| Mahanadi | 900 |
| Brahmputra | 2900 |
| Ganga | 2500 |
| Kaveri | 800 |
| Krishna | 1300 |
Draw a bar graph to represent the above information.
Observe the given data:
| Days of the week |
Mon | Tues | Wed | Thurs | Fri | Sat |
| Number of Mobile Phone Sets Sold |
50 | 45 | 30 | 55 | 27 | 60 |
- Draw a bar graph to represent the above given information.
- On which day of the week was the sales maximum?
- Find the total sales during the week.
- Find the ratio of the minimum sale to the maximum sale.
- Calculate the average sale during the week.
- On how many days of the week was the sale above the average sales?
The marks out of 100 obtained by Kunal and Soni in the Half Yearly Examination are given below:
| Subjects | English | Hindi | Maths | Science | S. Science | Sanskirt |
| Kunal | 72 | 81 | 92 | 96 | 64 | 85 |
| Soni | 86 | 89 | 90 | 82 | 75 | 82 |
- Draw a double bar graph by choosing appropriate scale.
- Calculate the total percentage of marks obtained by Soni.
- Calculate the total percentage of marks obtained by Kunal.
- Compare the percentages of marks obtained by Kunal and Soni.
- In how many subjects did Soni get more marks than Kunal? Which are those subjects?
- Who got more marks in S. Science and what was the difference of marks?
- In which subject the difference of marks was maximum and by how much?
