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Quartile Deviation $=12.55$ Minute
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Obtain the 3rd term in the expansion of $\left(\sqrt{x}-\frac{1}{\sqrt{x}}\right)^{4}$.
→A person donates $Rs. 1000$ in January, $2017$ and $Rs. 2000$ in February, $2017$. Thus every month he donates double the amount than the previous month. How much can he donate in January $2017?$
→If $g(x)=\sqrt{36-x^{2}},-6 \leq x \leq 6 ;$ find $g(0), g(-3), g$ $(5), g(-6)$ and $g(2) .$
→Represent the following data through a bar diagram :
→| Year | $2011$ | $2012$ | $2013$ | $2014$ | $2015$ |
| Production(in crore) | $3.5$ | $4.2$ | $5.8$ | $7.4$ | $10.2$ |
Putting $x=-1$ in the expansion of $(2 x+1)^{5}$, verify both the sides.
→If the weekly income (in $Rs$ ) of $10$ persons are as follows, then
$(1)$ What percentage of persons whose weekly income are included in the range $\bar{x} \pm s ?$
$(2)$ What percentage of persons whose weekly income are included in the range $\bar{x} \pm 2 s$ ?
$350,327,320,385,360,340,380,345,400,372$
→$(1)$ What percentage of persons whose weekly income are included in the range $\bar{x} \pm s ?$
$(2)$ What percentage of persons whose weekly income are included in the range $\bar{x} \pm 2 s$ ?
$350,327,320,385,360,340,380,345,400,372$
Obtain an inclusive continuous frequency distribution from the following data.
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Lower boundary point or more than that
|
$44.5$
|
$49.5$
|
$54.5$
|
$59.5$
|
$64.5$
|
$69.5$
|
$74.5$
|
$79.5$
|
|
Cumulative frequency
|
$500$
|
$470$
|
$390$
|
$290$
|
$240$
|
$90$
|
$10$
|
$0$
|
A person bays a maruti car at $Rs. 4,50,000.$ If $10 \%$ depreciation is available on the cost of the car per year, what will be the cost of the car after $4$ years?
→Define symmetric frequency distribution and state its characteristics.
Rajvi saves $₹ 50$ in the first week. Every week thereafter, she saves $1.5$ times the amount of the previous week. If her total saving is of $n$ weeks, ₹ $406.25$ find $n$.
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