26-Statistics

Statistics

Latest updates Popular Newest Unanswered Unsolved

M
How to prepare for Statistics for JEE Mains
Answers
10
Views
2K
Moderator2
M
deveshgarg2008
  • Solved
There are two sets of observations with term $\left\{x_r, f_r\right\}$ and $\left\{y_r, f_r\right\}$ (where $x_r$ and $y_r$ are observation with their
Answers
1
Views
297
rahulp
R
K
Let the mean and the variance of 20 observations $x_1, x_2, \ldots, x_{20}$, be 15 and 9 , respectively. For $\alpha \in \mathrm{R}$, if the mean of
Answers
1
Views
210
solution.livedoubt
S
AGRIMA M
Let $x_1, x_2, \ldots, x_{10}$ be ten observations such that $\sum_{i=1}^{10}\left(x_i-2\right)=30$, $\sum_{i=1}^{10}\left(x_i-\beta\right)^2=98$
Answers
1
Views
332
solution.livedoubt
S
L
Given the observations arranged in ascending order as 6, 7, x-2, and x, if the median of these observations is 10, what is the value of x?
Answers
2
Views
169
Math.LiveDoubtClearing
M
M
If mean and standard deviation of 5 observations $x_1, x_2, x_3, x_4, x_5$ are 10 and 3 , respectively, then the variance of 6 observations
Answers
1
Views
117
Math.LiveDoubtClearing
M
Sehajdeep singh
Find the variance of the following data: \[ 6,8,10,12,14,16,18,20,22,24 \]
Answers
2
Views
194
Math.LiveDoubtClearing
M
Sakshi
$\text {If the mean of the frequency distribution }$ is 28 , then its variance is
Answers
1
Views
264
Math.LiveDoubtClearing
M
G
Let $X_1, X_2, \ldots, X_{18}$ be eighteen observations such that $\sum_{i=1}^{18}\left(X_i-\alpha\right)=36$ and
Answers
1
Views
147
LiveDoubtClearing
L
P
The frequency distribution of the age of students in a class of 40 students is given below.
Answers
2
Views
222
LiveDoubtClearing
L
R
Let $\mathrm{x}_1, \mathrm{x}_2, \ldots \ldots \ldots, \mathrm{x}_{100}$ are 100 observations such that
Answers
1
Views
264
Math.LiveDoubtClearing
M
P
The frequency distribution of the age of students in a class of 40 students is given below.
Answers
1
Views
234
LiveDoubtClearing
L
P
Let \( 9=x_{1}<x_{2}<\ldots . .<x_{7} \) in an A.P. with common difference d. If the standard deviation of \( x_{1}, x_{2} \ldots \ldots x_{7} \) is 4
Answers
1
Views
187
LiveDoubtClearing3
L
You must log in or register to post here.
Back
Top