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Answer
Quartile Deviation $=₹ 87.11$
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Information regarding the number of accidents in a city during a year is as under. Find the inclusive continuous frequency distribution from it.
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No. of accidents (Mid values)
|
$11.5$
|
$21.5$
|
$31.5$
|
$41.5$
|
$51.5$
|
Total
|
|
No. of days
|
$160$
|
$120$
|
$43$
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$40$
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$2$
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$365$
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From the following measures obtained for the frequency distributions of sales (in lakh Rs.) of potatoes by two merchants in a month, determine which distribution is more close to symmetry.
The data about weight (in grams) of mangoes from a tree are as follows. Moreover, the minimum weight for these mangoes is $410$ grams. Find the mean weight of mangoes.
→There were $1400$ students studying in a commerce college. Among them, $855$ were boys and of them, $225$ boys were in the second year. In the second year, the number of boys and the number of girls are equal. Among the $550$ students of the first year, the proportion of number of boys and the girls is $3:2$. In the third year, number of boys is three times the number of girls. Represent the above information in a table.
→By considering the inclusive frequency distribution obtained in illustration $3$, find
$(i)$ Exclusive frequency distribution and
$(ii)$ Frequency distribution showing mid value of each class.
→$(i)$ Exclusive frequency distribution and
$(ii)$ Frequency distribution showing mid value of each class.
The data of daily average income (in $₹$ ) for $40$ hawkers of a city are as follows. Prepare an exclusive frequency distribution having classlength $100$ and midvalue of one of the classes as $650$ .
$\text{539 476 513 436 453 670 953 972 691 587}$
$\text{822 999 469 447 442 680 513 560 737 687}$
$\text{1044 891 560 481 478 460 476 563 558 1080}$
$\text{1033 707 660 602 503 493 504 443 550 900}$
→$\text{539 476 513 436 453 670 953 972 691 587}$
$\text{822 999 469 447 442 680 513 560 737 687}$
$\text{1044 891 560 481 478 460 476 563 558 1080}$
$\text{1033 707 660 602 503 493 504 443 550 900}$
The population of a city was $5000$ in $2012$. If the growth rate is $2 \%$ per annum, what will be the population of the city in $2017?$
→Find the middle term in the expansion of $\left(\frac{x^{2}}{2}-\frac{2}{x}\right)^{8}$
→Find the values of the following using binomial expansion: $(\sqrt{5}+2)^{6}+(\sqrt{5}-2)^{6}$
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