Marks obtained by all the students of class $12$ are presented in a frequency distribution with classes of equal width. Let the median of this grouped data be $14$ with median class interval $12-18$ and median class frequency $12$. If the number of students whose marks are less than $12$ is $18$,then the total number of students is
- A$48$
- B$44$
- C$40$
- D$52$
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Similar Questions
Which one of the following is false?
Consider the following frequency distribution:
Class: $10-20$ $20-30$ $30-40$ $40-50$ $50-60$ Freq: $\alpha$ $110$ $54$ $30$ $\beta$
If the sum of all frequencies is $584$ and the median is $45$,then $|\alpha-\beta|$ is equal to $.....$
| Class: | $10-20$ | $20-30$ | $30-40$ | $40-50$ | $50-60$ |
| Freq: | $\alpha$ | $110$ | $54$ | $30$ | $\beta$ |
If the sum of all frequencies is $584$ and the median is $45$,then $|\alpha-\beta|$ is equal to $.....$
DifficultJEE MAIN 2021
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The range of the observations $2, 3, 5, 9, 8, 7, 6, 5, 7, 4, 3$ is . . . . . . .
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View SolutionThe mortality in a town during $4$ quarters of a year due to various causes is given in the bar graph below. Based on this data,calculate the percentage increase in mortality in the third quarter compared to the second quarter.
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