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$M_{ o }=15.785$ Minutes
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A machine is purchased in $Rs. 10,600.$ The depreciation on the machine is calculated at the rate of $10\%$ per annum. What will be the estimated value of the machine at the end of four years?
→The number of cheques deposited in a bank per day has the following frequency distribution :
Find the median number of cheques deposited.
Find the median number of cheques deposited.
From the following data state which frequency distribution is close to symmetry.:
Frequency distribution $\mathrm{A}: \bar{x}=40, M=44, S=15$
Frequency distribution $\mathrm{B}: x=40, M=45, s=16$
→Frequency distribution $\mathrm{A}: \bar{x}=40, M=44, S=15$
Frequency distribution $\mathrm{B}: x=40, M=45, s=16$
Find the quartile deviation of advertisement expenditure using following frequency distribution of advertising expenditure of $50$ companies :
→| Advertisement cost (thousand $Rs$. ) | $0 – 5$ | $5 – 15$ | $15 – 30$ | $30 – 40$ | $40 – 60$ | $60 -100$ | Total |
| No. of companies | $3$ | $8$ | $15$ | $10$ | $8$ | $6$ | $50$ |
The runs scored by a cricket players in $10$ matches are respectively $52,38,70,42,40,95,19,50,32$ and $62$ . Find the standard deviation and the coefficient of variation
→A mobile phone manufacturing company produces and sells two types of mobile phones. The particulars about it are given in the following table. Present it by a suitable diagram.
→| Particulars | Mobile $A$ | Mobile $B$ |
| Raw material | $5000$ | $6000$ |
| Assembly expense | $3000$ | $3000$ |
| Other expense | $4000$ | $4500$ |
| Total expense | $12000$ | $13500$ |
| Selling price | $13000$ | $15000$ |
In a state at the rate of $3 \%$ the number of children increases. If in $2012$, the number of children was $12000$, what will be the number of children in the beginning of the year $2017?$ Also find the number of children at the end of year $2017.$
→Obtain an exclusive continuous frequency distribution from the following data.
→|
Less than weight (kg.)
|
$30$
|
$35$
|
$40$
|
$45$
|
$50$
|
$55$
|
$60$
|
$65$
|
$70$
|
|
Cumulative frequency
|
$0$
|
$17$
|
$25$
|
$40$
|
$48$
|
$54$
|
$57$
|
$59$
|
$60$
|