Advertisements
Advertisements
Question
A survey conducted by an organisation for the cause of illness and death among the women between the ages 15 - 44 (in years) worldwide, found the following figures (in %):-
S.No. | Causes | Female fatality rate (%) |
1. | Reproductive health conditions | 31.8 |
2. | Neuropsychiatric conditions | 25.4 |
3. | Injuries | 12.4 |
4. | Cardiovascular conditions | 4.3 |
5. | Respiratory conditions | 4.1 |
6. | Other causes | 22.0 |
- Represent the information given above graphically.
- Which condition is the major cause of women’s ill health and death worldwide?
- Try to find out, with the help of your teacher, any two factors which play a major role in the cause in (ii) above being the major cause.
Solution
(i) By representing causes on x-axis and family fatality rate on y-axis and choosing an appropriate scale (1 unit = 5% for y axis), the graph of the information given above can be constructed as follows.
All the rectangle bars are of the same width and have equal spacing between them.
(ii) Reproductive health conditions are the major cause of women’s ill health and death worldwide, as 31.8% of women are affected by it.
(iii) The factors are as follows.
- Lack of medical facilities.
- Lack of correct knowledge of treatment.
APPEARS IN
RELATED QUESTIONS
The following table gives the distribution of students of two sections according to the mark obtained by them:-
Section A | Section B | ||
Marks | Frequency | Marks | Frequency |
0 - 10 | 3 | 0 - 10 | 5 |
10 - 20 | 9 | 10 - 20 | 19 |
20 - 30 | 17 | 20 - 30 | 15 |
30 - 40 | 12 | 30 - 40 | 10 |
40 - 50 | 9 | 40 - 50 | 1 |
Represent the marks of the students of both the sections on the same graph by two frequency polygons. From the two polygons compare the performance of the two sections.
100 surnames were randomly picked up from a local telephone directory and a frequency distribution of the number of letters in the English alphabet in the surnames was found as follows:
Number of letters | Number of surnames |
1 - 4 | 6 |
4 - 6 | 30 |
6 - 8 | 44 |
8 - 12 | 16 |
12 - 20 | 4 |
- Draw a histogram to depict the given information.
- Write the class interval in which the maximum number of surnames lie.
Given below (Fig. below) is the bar graph indicating the marks obtained out of 50 in mathematics paper by 100 students. Read the bar graph and answer the following questions:
(i) It is decided to distribute work books on mathematics to the students obtaining less than 20 marks, giving one workbook to each of such students. If a work book
costs Rs 5, what sum is required to buy the work books?
(ii) Every student belonging to the highest mark group is entitled to get a prize of Rs. 10. How much amount of money is required for distributing the prize money?
(iii) Every student belonging to the lowest mark—group has to solve 5 problems per day. How many problems, in all, will be solved by the students of this group per day?
(iv) State whether true or false.
a. 17% students have obtained marks ranging from 40 to 49.
b. 59 students have obtained marks ranging from 10 to 29.
(v) What is the number of students getting less than 20 marks?
(vi) What is the number of students getting more than 29 marks?
(vii) What is the number of students getting marks between 9 and 40?
(viii) What is the number of students belonging to the highest mark group?
(ix) What is the number of students obtaining more than 19 marks?
The following data gives the value (in crores of rupees) of the Indian export of cotton textiles for different years:
Years | 1982 | 1983-1984 | 1984-1985 | 1985-1986 | 1986-1987 |
Value of Export of Cotton Textiles (in crores of rupees) |
300 | 325 | 475 | 450 | 550 |
Represent the above data with the help of a bar graph. Indicate with the help of a bar graph the year in which the rate of increase in exports is maximum over the preceding year.
The following is the distribution of total household expenditure (in Rs.) of manual worker in a city:
Expenditure (in Rs): |
100-150 | 150-200 | 200-250 | 250-300 | 300-350 | 350-400 | 400-450 | 450-500 |
No. of manual workers: | 25 | 40 | 33 | 28 | 30 | 22 | 16 | 8 |
Draw a histogram and a frequency polygon representing the above data.
In a frequency distribution, ogives are graphical representation of
A hundred students from a certain locality use different modes of travelling to school as given below. Draw a bar graph.
Bus | Car | Rickshaw | Bicycle | Walk |
32 | 16 | 24 | 20 | 8 |
The birth rate thousand of the following states over a certain period is given below:
States | Punjab | Haryana | U.P. | Gujarat | Rajasthan | Jammu and Kashmir |
Birth Rate (per thousand ) | 22.9 | 21.8 | 19.5 | 21.1 | 23.9 | 18.3 |
Draw a bar graph for the above data.
The frequency distribution has been represented graphically as follows:
Marks | 0 – 20 | 20 – 40 | 40 – 60 | 60 – 100 |
Number of Students | 10 | 15 | 20 | 25 |
Do you think this representation is correct? Why?
The marks obtained (out of 100) by a class of 80 students are given below:
Marks | Number of students |
10 – 20 | 6 |
20 – 30 | 17 |
30 – 50 | 15 |
50 – 70 | 16 |
70 – 100 | 26 |
Construct a histogram to represent the data above.