Consider the following distribution:
Marks obtained Number of students More than or equal to $0$ $63$ More than or equal to $10$ $58$ More than or equal to $20$ $55$ More than or equal to $30$ $51$ More than or equal to $40$ $48$ More than or equal to $50$ $42$
The frequency of the class $30-40$ is:
| Marks obtained | Number of students |
| More than or equal to $0$ | $63$ |
| More than or equal to $10$ | $58$ |
| More than or equal to $20$ | $55$ |
| More than or equal to $30$ | $51$ |
| More than or equal to $40$ | $48$ |
| More than or equal to $50$ | $42$ |
The frequency of the class $30-40$ is:
- A$3$
- B$4$
- C$5$
- D$6$
Explore More
Similar Questions
The weights (in $kg$) of $50$ wrestlers are recorded in the following table:
Weight (in $kg$) $100-110$ $110-120$ $120-130$ $130-140$ $140-150$ Number of wrestlers $4$ $14$ $21$ $8$ $3$
Find the mean weight of the wrestlers (in $kg$).
| Weight (in $kg$) | $100-110$ | $110-120$ | $120-130$ | $130-140$ | $140-150$ |
| Number of wrestlers | $4$ | $14$ | $21$ | $8$ | $3$ |
Find the mean weight of the wrestlers (in $kg$).
Medium
View SolutionFor a given frequency distribution,$\Sigma f_{i} x_{i} = 1790$ and $\Sigma f_{i} = 50$. Then,the mean $\bar{x} = $ ..........
Easy
View SolutionFor a given frequency distribution,$\Sigma f_{i} u_{i} = -13$,$n = \Sigma f_{i} = 100$,$A = 62.5$ and $c = 15$. Then,mean $\bar{x} = \dots$
Easy
View SolutionConsider the following frequency distribution:
Class $0-5$ $6-11$ $12-17$ $18-23$ $24-29$ Frequency $13$ $10$ $15$ $8$ $11$
The upper limit of the median class is
| Class | $0-5$ | $6-11$ | $12-17$ | $18-23$ | $24-29$ |
| Frequency | $13$ | $10$ | $15$ | $8$ | $11$ |
The upper limit of the median class is
Medium
View SolutionThe percentage of marks obtained by $100$ students in an examination are given below:
Marks $30-35$ $35-40$ $40-45$ $45-50$ $50-55$ $55-60$ $60-65$ Frequency $14$ $16$ $18$ $23$ $18$ $8$ $3$
Determine the median percentage of marks.
| Marks | $30-35$ | $35-40$ | $40-45$ | $45-50$ | $50-55$ | $55-60$ | $60-65$ |
| Frequency | $14$ | $16$ | $18$ | $23$ | $18$ | $8$ | $3$ |
Determine the median percentage of marks.
Medium
View SolutionVedclass 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