An analysis of monthly wages paid to the workers of two jute mills $A$ and $B$ gives the following data:
Metric Mill-$A$ Mill-$B$ No. of workers $500$ $600$ Average daily wage (in rupees) $186$ $175$ Variance of distribution of wages $81$ $100$
Then:
| Metric | Mill-$A$ | Mill-$B$ |
| No. of workers | $500$ | $600$ |
| Average daily wage (in rupees) | $186$ | $175$ |
| Variance of distribution of wages | $81$ | $100$ |
Then:
- AWage bill of mill $A$ is twice that of mill $B$.
- BMills $A$ and $B$ both have same wage bills.
- CWage bill of mill $A$ is greater than that of mill $B$.
- DWage bill of mill $B$ is greater than that of mill $A$.
Explore More
Similar Questions
The mean and variance of $5$ observations are $5$ and $8$ respectively. If $3$ observations are $1, 3, 5$,then the sum of cubes of the remaining two observations is
DifficultJEE MAIN 2023
View SolutionLet the median and the mean deviation about the median of $7$ observations $170, 125, 230, 190, 210, a, b$ be $170$ and $\frac{205}{7}$ respectively. Then the mean deviation about the mean of these $7$ observations is:
DifficultJEE MAIN 2024
View SolutionThe weighted mean of the first $n$ natural numbers,where the weights are equal to the squares of the corresponding numbers,is:
Difficult
View SolutionIf $x_1, x_2, \ldots, x_n$ are $n$ observations such that $\sum_{i=1}^n x_i^2 = 400$ and $\sum_{i=1}^n x_i = 80$,then the least value of $n$ is
DifficultAP EAMCET 2014
View SolutionThe mean and standard deviation of $20$ observations are found to be $10$ and $2$,respectively. It was later discovered that one observation was mistakenly recorded as $8$ instead of $12$. The correct standard deviation is:
Vedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo