The above table depicts the age group of people living in an apartment. Since the group width is unequal find the length of rectangle with respect to age group width 5 per interval.

$\begin{matrix} age group & number of people 10 - 19 & 12 20 - 24 & 13 25 - 29 & 36 30 - 34 & 15 \end{matrix}$
[3 MARKS]

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Solution

Concept: 1 Mark
Application: 2 Marks

$\begin{matrix} Age group & Number of people & Width & Length of rectangle 10 - 19 & 12 & 10 & (\frac{12}{10}) \times 5 = 6 20 - 24 & 13 & 5 & (\frac{13}{5}) \times 5 = 13 25 - 29 & 36 & 5 & (\frac{36}{5}) \times 5 = 36 30 - 44 & 15 & 15 & (\frac{15}{15}) \times 5 = 5 \end{matrix}$

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The above table depicts the age group of people living in an apartment. Since the group width is unequal find the length of rectangle with respect to age group width 5 per interval.

$\begin{matrix} age group & number of people 10 - 19 & 12 20 - 24 & 13 25 - 29 & 36 30 - 34 & 15 \end{matrix}$
[3 MARKS]

Q. The histogram given below shows the number of literate females in the age group of 10 to 40 years. Study the histogram carefully and answer the question that follow:

(i) Write the classes, assuming that all the classes are of equal width.
(ii) What is the class width?
(iii) In which age group are the literate females the least?
(iv) In which age group is the number of literate females the highest?

Hint. Number of class intervals of equal width = 6 (given), class width =

\frac{(40 - 10)}{6} = 5 .

The graph depicts the percentage of men and women suffering from a migraine in various age groups.

a) In which age group, there is a huge difference between the percentage of men and women?

b) In which age group, the percentage of women is the least?

c) What is the percentage of women in the age group of 18-44?
[3 MARKS]

Number of persons in various age groups in a town is given in the following table.

Age group

1 − 14

15 − 29

30 − 44

45 − 59

60 −74

75 and above

Number of persons

2 lakhs

1 lakhs

60 thousands

1 lakh

20 thousands

1 lakh

20 thousands

Thousands

Draw a bar graph to represent the above information and answer the following questions. (take 1 unit length = 20 thousands)

(a) Which two age groups have same population?

(b) All persons in the age group of 60 and above are called senior citizens. How many senior citizens are there in the town?

Q. The following histogram shows the number of literate females in the age group of 10 to 40 years in a town:

(i) Write the age group in which the number of literate female is the highest.
(ii) What is the class width?
(iii) What is the lowest frequency?
(iv) What are the class marks of the classes?
(v) In which age group literate females are the least?

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The above table depicts the age group of people living in an apartment. Since the group width is unequal find the length of rectangle with respect to age group width 5 per interval. age groupnumber of people10−191220−241325−293630−3415 [3 MARKS]

Concept: 1 Mark Application: 2 Marks Age groupNumber of peopleWidthLength of rectangle10−191210(1210)×5=620−24135(135)×5=1325−29365(365)×5=3630−441515(1515)×5=5