हिंदी

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). - Algebra

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प्रश्न

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
आलेख
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उत्तर

1. Sub-divided Bar Diagram:

Year Permanent Roads
(Lakh km.)
Temporary Roads
(Lakh km.)
Total
2000-2001 14 10 24
2001-2002 15 11 26
2002-2003 17 13 30
2003-2004 20 19 39

2. Percentage Bar Diagram:

Year Permanent Roads
(Lakh km.)
Percentage of permanent roads Temporary Roads
(Lakh km.)
Percentage of temporary roads
2000-2001 14 = `14 / (14 + 10)` × 100 = `1400 / 24` = 58.33 ≈ 58 10 = `10/ (14 + 10)` × 100 = `1000 / 24` = 41.66 ≈ 42
2001-2002 15 = `15 / (15 + 11)` × 100 = `1500 / 26 ` = 57.69 ≈ 58 11 = `11/ (15 + 11)` × 100 = `1100 / 26` = 42.30 ≈ 42 
2002-2003 17 = `17 / (17+13)` × 100 = `1700 / 30` = 56.66 ≈ 57 13 = `13 / (17 + 13)` × 100 = `1300/30` = 43.33 ≈ 43
2003-2004 20 = `20 / ( 20 + 19)` × 100 = `2000 / 39` = 51.28 ≈ 51 19 = `19/( 20 + 19)` × 100 = `1900/39` = 48.71 ≈ 49

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अध्याय 7: Statistics - Practice set 7.1 [पृष्ठ १११]

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बालभारती Mathematics 1 [English] Standard 9 Maharashtra State Board
अध्याय 7 Statistics
Practice set 7.1 | Q (2) | पृष्ठ १११

संबंधित प्रश्न

Consider this data collected from a survey of a colony.

Favourite sport Cricket Basket Ball Swimming Hockey Athletics
Watching 1240 470 510 430 250
Participating 620 320 320 250 105
  1. Draw a double bar graph choosing an appropriate scale. What do you infer from the bar graph?
  2. Which sport is most popular?
  3. Which is more preferred, watching or participating in sports?

In a bar graph, bars of uniform width are drawn vertically only.


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.


The following bar graph represents the data for different sizes of shoes worn by the students in a school.

Read the graph and answer the following questions.

Scale: 1 unit length = 50 students

  1. Find the number of students whose shoe sizes have been collected.
  2. What is the number of students wearing shoe size 6?
  3. What are the different sizes of the shoes worn by the students?
  4. Which shoe size is worn by the maximum number of students?
  5. Which shoe size is worn by minimum number of students?
  6. State whether true or false:
    The total number of students wearing shoe sizes 5 and 8 is the same as the number of students wearing shoe size 6.

The following graph gives the information about the number of railway tickets sold for different cities on a railway ticket counter between 6.00 am to 10.00 am.

Read the bar graph and answer the following questions.

Scale: 1 unit length = 10 tickets

  1. How many tickets were sold in all?
  2. For which city were the maximum number of tickets sold?
  3. For which city were the minimum number of tickets sold?
  4. Name the cities for which the number of tickets sold is more than 20
  5. Fill in the blanks:
    Number of tickets sold for Delhi and Jaipur together exceeds the total number of tickets sold for Patna and Chennai by ______.

The bar graph given below represents the circulation of newspapers in different languages in a town.

Study the bar graph and answer the following questions:

Scale: 1 unit length = 200 Newspapers

  1. What is the circulation of English newspaper?
  2. Name the two languages in which circulation of newspaper is the same.
  3. By how much is the circulation of newspaper in Hindi more than the newspaper in Bengali?

Scale: 1 unit length = 200 km

Prepare a pictograph of the data by taking a suitable symbol to represent 200 kilometers.


Crop Area of land
(in million hectares)
Rice 50
Wheat 30
Pulses 20
Sugarcane 25
Cotton 15

Prepare a bar graph of the data.


The representation of data with bars of uniform width is called ______.


Study the double bar graphs given below and answer the following questions:

  1. Which sport is liked the most by Class VIII students?
  2. How many students of Class VII like Hockey and Tennis in all?
  3. How many students are there in Class VII?
  4. For which sport is the number of students of Class VII less than that of Class VIII?
  5. For how many sports students of Class VIII are less than Class VII?
  6. Find the ratio of students who like Badminton in Class VII to students who like Tennis in Class VIII.

Study the double bar graph shown below and answer the questions that follow:

  1. What information is represented by the above double bar graph?
  2. In which month sales of Brand A decreased as compared to the previous month?
  3. What is the difference in sales of both the Brands for the month of June?
  4. Find the average sales of Brand B for the six months.
  5. List all months for which the sales of Brand B was less than that of Brand A.
  6. Find the ratio of sales of Brand A as compared to Brand B for the month of January.

Study the double bar graph given below and answer the questions that follow:

  1. What information is compared in the above given double bar graph?
  2. Calculate the ratio of minimum temperatures in the year 2008 to the year 2009 for the month of November.
  3. For how many months was the minimum temperature in the year 2008 greater than that of year 2009? Name those months.
  4. Find the average minimum temperature for the year 2008 for the four months.
  5. In which month is the variation in the two temperatures maximum?

The following table shows the average intake of nutrients in calories by rural and urban groups in a particular year. Using a suitable scale for the given data, draw a double bar graph to compare the data.

Foodstuff Rural Urban
Pulses 35 49
Leafy vegetables 14 21
Other vegetables 51 89
Fruits 35 66
Milk 70 250
Fish and flesh floods 10 22
Fats and Oils 9 35
Sugar/Jaggery 19 31

In a public library, the following observations were recorded by the librarian in a particular week:

Days Mon Tues Wed Thurs Fri Sat
Newspaper
Readers
400 600 350 550 500 350
Magazines
Readers
150 100 200 300 250 200
  1. Draw a double bar graph choosing an appropriate scale.
  2. On which day, the number of readers in the library was maximum?
  3. What is the mean number of magazine readers?

Observe the following data:

Government School, Chandpur
Daily Attendance   Date: 15.4.2009
Class Total Students Number of Students
Present on that Day
VI 90 81
VII 82 76
VIII 95 91
IX 70 65
X 63 62
  1. Draw a double bar graph choosing an appropriate scale. What do you infer from the bar graph?
  2. Which class has the maximum number of students?
  3. In which class, the difference of total students and number of students present is minimum?
  4. Find the ratio of number of students present to the total number of students of Class IX.
  5. What per cent of Class VI students were absent?

The data given below shows the production of motorbikes in a factory for some months of two consecutive years.

Months Feb May August October December
2008 2700 3200 6000 5000 4200
2007 2800 4500 4800 4800 5200

Study the table given above and answer the following questions:

  1. Draw a double bar graph using appropriate scale to depict the above information and compare them.
  2. In which year was the total output the maximum?
  3. Find the mean production for the year 2007.
  4. For which month was the difference between the production for the two years the maximum?
  5. In which month for the year 2008, the production was the maximum?
  6. In which month for the year 2007, the production was the least?

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