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Take the data giving the minimum and the maximum temperature of various cities given in the following table: Temperatures of the cities as on 20.6.2006 City Ahmedabad Amritsar Banglore Chennai Delhi - Mathematics

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प्रश्न

Take the data giving the minimum and the maximum temperature of various cities given in the following table:

Temperatures of the cities as on 20.6.2006
City Max. Min.
Ahmedabad 38ºC 29ºC
Amritsar 37ºC 26ºC
Banglore 28ºC 21ºC
Chennai 36ºC 27ºC
Delhi 38ºC 28ºC
Jaipur 39ºC 29ºC
Jammu 41ºC 26ºC
Mumbai 32ºC 27ºC

Plot a double bar graph using the data and answer the following:

  1. Which city has the largest difference in the minimum and maximum temperature on the given date?
  2. Which is the hottest city and which is the coldest city?
  3. Name two cities where maximum temperature of one was less than the minimum temperature of the other.
  4. Name the city which has the least difference between its minimum and the maximum temperature.
संक्षेप में उत्तर
आलेख
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उत्तर

A double bar graph for the given data is constructed as follows.

  1. From the graph, it can be concluded that Jammu has the largest difference in its minimum and maximum temperatures on 20.6.2006.
  2. From the graph, it can be concluded that Jammu is the hottest city and Bangalore is the coldest city.
  3. Bangalore and Jaipur, Bangalore and Ahmedabad
    For Bangalore, the maximum temperature was 28ºC, while minimum temperature of both cities, Ahmedabad and Jaipur, was 29ºC.
  4. From the graph, it can be concluded that the city which has the least difference between its minimum and maximum temperatures is Mumbai.
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अध्याय 3: Data Handling - Exercise 3.3 [पृष्ठ ७३]

APPEARS IN

एनसीईआरटी Mathematics [English] Class 7
अध्याय 3 Data Handling
Exercise 3.3 | Q 6 | पृष्ठ ७३

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?

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

The graph shows the maximum temperatures recorded for two consecutive weeks of a town. Study the graph and answer the questions that follow.

  1. What information is given by the two axes?
  2. In which week was the temperature higher on most of the days?
  3. On which day was the temperature same in both the weeks?
  4. On which day was the difference in temperatures the maximum for both the weeks?
  5. What were the temperatures for both the weeks on Thursday?
  6. On which day was the temperature 35°C for the first week?
  7. On which day was the temperature highest for the second week?

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 ______.

Read the bar graph given below and answer the following questions:

Scale: 1 unit = 50 students

  1. What information is given by the bar graph?
  2. In which year is the number of students maximum?
  3. In which year is the number of students twice as that of 2001 – 02?
  4. In which year did the number of students decrease as compared to previous year?
  5. 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 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.

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?

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
  1. Draw a bar graph to represent the above given information.
  2. On which day of the week was the sales maximum?
  3. Find the total sales during the week.
  4. Find the ratio of the minimum sale to the maximum sale.
  5. Calculate the average sale during the week.
  6. On how many days of the week was the sale above the average sales?

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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