Consider the marks obtained by $10$ students in a mathematics test as given below:
$55, 36, 95, 73, 60, 42, 25, 78, 75, 62$
$55, 36, 95, 73, 60, 42, 25, 78, 75, 62$
(N/A) The data in this form is called raw data.
By looking at it in this form,can you find the highest and the lowest marks?
Did it take you some time to search for the maximum and minimum scores? It would be less time-consuming if these scores were arranged in ascending or descending order. So,let us arrange the marks in ascending order as:
$25, 36, 42, 55, 60, 62, 73, 75, 78, 95$
Now,we can clearly see that the lowest marks are $25$ and the highest marks are $95$.
The difference between the highest and the lowest values in the data is called the range of the data. So,the range in this case is $95 - 25 = 70$.
Presentation of data in ascending or descending order can be quite time-consuming,particularly when the number of observations in an experiment is large.
By looking at it in this form,can you find the highest and the lowest marks?
Did it take you some time to search for the maximum and minimum scores? It would be less time-consuming if these scores were arranged in ascending or descending order. So,let us arrange the marks in ascending order as:
$25, 36, 42, 55, 60, 62, 73, 75, 78, 95$
Now,we can clearly see that the lowest marks are $25$ and the highest marks are $95$.
The difference between the highest and the lowest values in the data is called the range of the data. So,the range in this case is $95 - 25 = 70$.
Presentation of data in ascending or descending order can be quite time-consuming,particularly when the number of observations in an experiment is large.
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Similar Questions
$A$ survey conducted by an organisation for the cause of illness and death among 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 $22.0$
$(i)$ Represent the information given above graphically.
$(ii)$ Which condition is the major cause of women's ill health and death worldwide?
$(iii)$ 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.
| $S$.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 | $22.0$ |
$(i)$ Represent the information given above graphically.
$(ii)$ Which condition is the major cause of women's ill health and death worldwide?
$(iii)$ 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.
Medium
View SolutionThe points scored by a Kabaddi team in a series of matches are as follows:
$17, 2, 7, 27, 15, 5, 14, 8, 10, 24, 48, 10, 8, 7, 18, 28$
Find the median of the points scored by the team.
$17, 2, 7, 27, 15, 5, 14, 8, 10, 24, 48, 10, 8, 7, 18, 28$
Find the median of the points scored by the team.
Medium
View SolutionFind the mean salary of $60$ workers of a factory from the following table:
Salary (in Rs.) Number of workers $3000$ $16$ $4000$ $12$ $5000$ $10$ $6000$ $8$ $7000$ $6$ $8000$ $4$ $9000$ $3$ $10000$ $1$ Total $60$
| Salary (in Rs.) | Number of workers |
| $3000$ | $16$ |
| $4000$ | $12$ |
| $5000$ | $10$ |
| $6000$ | $8$ |
| $7000$ | $6$ |
| $8000$ | $4$ |
| $9000$ | $3$ |
| $10000$ | $1$ |
| Total | $60$ |
Difficult
View SolutionThe following number of goals were scored by a team in a series of $10$ matches:
$2, 3, 4, 5, 0, 1, 3, 3, 4, 3$
Find the mean,median,and mode of these scores.
$2, 3, 4, 5, 0, 1, 3, 3, 4, 3$
Find the mean,median,and mode of these scores.
Medium
View SolutionThe following table gives the life times of $400$ neon lamps:
The time (in hours) Number of lamps $300-400$ $14$ $400-500$ $56$ $500-600$ $60$ $600-700$ $86$ $700-800$ $74$ $800-900$ $62$ $900-1000$ $48$
$(i)$ Represent the given information with the help of a histogram.
$(ii)$ How many lamps have a life time of more than $700$ hours?
| The time (in hours) | Number of lamps |
| $300-400$ | $14$ |
| $400-500$ | $56$ |
| $500-600$ | $60$ |
| $600-700$ | $86$ |
| $700-800$ | $74$ |
| $800-900$ | $62$ |
| $900-1000$ | $48$ |
$(i)$ Represent the given information with the help of a histogram.
$(ii)$ How many lamps have a life time of more than $700$ hours?
Medium
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