Question 11 Mark
Point of intersection of two ogive curve is $(23.7,40.5)$ then median will be ......... . $(40.5,23.7,32.1)$
View full question & answer→Question 21 Mark
Mean of $n$ observation is $\bar{x}$. If $1,2,3 \ldots .$. are adding in each observation respectively then mean of new observation is
$\left(\left(\bar{x}+\frac{n+1}{2}\right), \bar{x}+\frac{n}{2}, \bar{x}+\left(\frac{n+1}{4}\right)\right)$
Answer$=\bar{x}+\left(\frac{n+1}{2}\right)$
View full question & answer→Question 31 Mark
In formula of median $M =l+\left(\frac{\frac{n}{2}-c f}{f}\right) \times h$ value $c f=\ldots \ldots \ldots .\left(\frac{n}{2}, f, c f\right)$
View full question & answer→Question 41 Mark
In usual notation if $l=125, n=68, c f=22, f=20$ and $h=20$ then median $=\ldots \ldots . .(113,127,137)$
View full question & answer→Question 51 Mark
Mean of first $n$ even natural numbers is .......... . $\left((n+1),\left(\frac{n+1}{2}\right),(n(n+1))\right.$
View full question & answer→Question 61 Mark
In usual notation if $a=47.5, \Sigma f_i=30, \Sigma f_i u_i=29$ and $h=15$ then $\bar{x}=\ldots \ldots \ldots . .(95,62,68)$
View full question & answer→Question 71 Mark
If the mode of observation $6$ of $64,40,48, x, 43,48,43$ and $34$ is $43$ then $x+3=\ldots \ldots \ldots . .(51,45,46)$
View full question & answer→Question 81 Mark
If $\bar{x}-$ median $=4$ and $\bar{x}+$ median $=140$ then median $=\ldots \ldots \ldots . . .(72,140,68)$
View full question & answer→Question 91 Mark
For observations $1, 2, 3, 4,$ $\sum_{i=1}^4 x_i{ }^2=\ldots \ldots .(30,20,10)$
View full question & answer→Question 101 Mark
Mean of following frequency distribution is $2.6$ then $y=\ldots \ldots \ldots . .(2,4,8)$
| $x_(i)$ |
$1$ |
$2$ |
$3$ |
$4$ |
$5$ |
| $f_(i)$ |
$4$ |
$5$ |
$y$ |
$1$ |
$2$ |
View full question & answer→Question 111 Mark
$x_i=y_i+3, a=15, \bar{x}=15$ then $\bar{y}=\bar{x}+\ldots \ldots \ldots .(3,(-3),(-5))$
View full question & answer→Question 121 Mark
If $\bar{x}=6.45, \Sigma f_i=100, \Sigma f_i x_i=\ldots \ldots . .(645,6.45,64.5)$
View full question & answer→Question 131 Mark
If $\Sigma d_i=12, a=75.5, n=30$ then $x=$_______ $(70.5,69.9,75.9)$
View full question & answer→Question 141 Mark
If the mean of the following distribution table is $3.25$ then $m=$_______.$\quad(8,4,2)$
| $x_(i)$ |
$1$ |
$2$ |
$3$ |
$4$ |
$5$ |
| $f_(i)$ |
$6$ |
$7$ |
$m$ |
$9$ |
$10$ |
View full question & answer→Question 151 Mark
Median $=30, \bar{x}=30$, mean = _______ $\cdot(20,30,0)$
View full question & answer→Question 161 Mark
If $\bar{x}=6.45, \sum f i=100, \sum f i x i=$_______ $\cdot(100,645,10)$
View full question & answer→Question 171 Mark
If in a data $l=80, h=30, f_1=14, f_0=6$ and $f_2=12$ then mode of data $=$_______ .$(104,8,24)$
View full question & answer→Question 181 Mark
Z - M =____________ $\times( M -\bar{x}) \cdot(2,3,4)$
View full question & answer→