In a particular section of Class $IX,$ $40$ students were asked about the months of their birth and the following graph was prepared for the data so obtained:
Observe the bar graph given above and answer the following questions:
$(i)$ How many students were born in the month of November?
$(ii)$ In which month were the maximum number of students born?
Observe the bar graph given above and answer the following questions:
$(i)$ How many students were born in the month of November?
$(ii)$ In which month were the maximum number of students born?
(N/A) Note that the variable here is the 'month of birth',and the value of the variable is the 'Number of students born'.
$(i)$ By observing the bar graph,the height of the bar corresponding to the month of November is $4$. Thus,$4$ students were born in the month of November.
$(ii)$ By observing the bar graph,the tallest bar corresponds to the month of August,which has a height of $6$. Thus,the maximum number of students were born in the month of August.
$(i)$ By observing the bar graph,the height of the bar corresponding to the month of November is $4$. Thus,$4$ students were born in the month of November.
$(ii)$ By observing the bar graph,the tallest bar corresponds to the month of August,which has a height of $6$. Thus,the maximum number of students were born in the month of August.
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Similar Questions
In a city,the weekly observations made in a study on the cost of living index are given in the following table:
Cost of living index Number of weeks $140-150$ $5$ $150-160$ $10$ $160-170$ $20$ $170-180$ $9$ $180-190$ $6$ $190-200$ $2$ Total $52$
Draw a frequency polygon for the data above (without constructing a histogram).
| Cost of living index | Number of weeks |
| $140-150$ | $5$ |
| $150-160$ | $10$ |
| $160-170$ | $20$ |
| $170-180$ | $9$ |
| $180-190$ | $6$ |
| $190-200$ | $2$ |
| Total | $52$ |
Draw a frequency polygon for the data above (without constructing a histogram).
Medium
View SolutionThe lengths of $40$ leaves of a plant are measured correct to one millimetre,and the obtained data is represented in the following table:
Length (in $mm$) Number of leaves $118-126$ $3$ $127-135$ $5$ $136-144$ $9$ $145-153$ $12$ $154-162$ $5$ $163-171$ $4$ $172-180$ $2$
$(i)$ Draw a histogram to represent the given data. [Hint: First make the class intervals continuous]
$(ii)$ Is there any other suitable graphical representation for the same data?
$(iii)$ Is it correct to conclude that the maximum number of leaves are $153 \, mm$ long? Why?
| Length (in $mm$) | Number of leaves |
| $118-126$ | $3$ |
| $127-135$ | $5$ |
| $136-144$ | $9$ |
| $145-153$ | $12$ |
| $154-162$ | $5$ |
| $163-171$ | $4$ |
| $172-180$ | $2$ |
$(i)$ Draw a histogram to represent the given data. [Hint: First make the class intervals continuous]
$(ii)$ Is there any other suitable graphical representation for the same data?
$(iii)$ Is it correct to conclude that the maximum number of leaves are $153 \, mm$ long? Why?
Medium
View SolutionThe heights (in $cm$) of $9$ students of a class are as follows:
$155, 160, 145, 149, 150, 147, 152, 144, 148$
Find the median of this data. (in $\text{ cm}$)
$155, 160, 145, 149, 150, 147, 152, 144, 148$
Find the median of this data. (in $\text{ cm}$)
Medium
View Solution$5$ people were asked about the time in a week they spend doing social work in their community. They said $10, 7, 13, 20$ and $15$ hours,respectively. Find the mean (or average) time in a week devoted by them for social work.
Medium
View SolutionConsider the marks obtained (out of $100$ marks) by $30$ students of Class $IX$ of a school:
$\begin{array}{*{20}{c}}
{10}&{20}&{36}&{92}&{95}&{40}&{50}&{56}&{60}&{70} \\
{92}&{88}&{80}&{70}&{72}&{70}&{36}&{40}&{36}&{40} \\
{92}&{40}&{50}&{50}&{56}&{60}&{70}&{60}&{60}&{88}
\end{array}$
$\begin{array}{*{20}{c}}
{10}&{20}&{36}&{92}&{95}&{40}&{50}&{56}&{60}&{70} \\
{92}&{88}&{80}&{70}&{72}&{70}&{36}&{40}&{36}&{40} \\
{92}&{40}&{50}&{50}&{56}&{60}&{70}&{60}&{60}&{88}
\end{array}$
Medium
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