The class mark of a frequency distribution with equal sizes of two successive classes is $72$ and $77$. Then,the width of the class is ...........
- A$2.5$
- B$5$
- C$74.5$
- D$149$
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Similar Questions
Draw a histogram for the following frequency distribution with unequal class length:
Class $0-10$ $10-20$ $20-40$ $40-70$ $70-100$ Frequency $15$ $13$ $28$ $36$ $27$
| Class | $0-10$ | $10-20$ | $20-40$ | $40-70$ | $70-100$ |
| Frequency | $15$ | $13$ | $28$ | $36$ | $27$ |
Medium
View SolutionThe lengths of $62$ leaves of a plant are measured in millimetres and the data is represented in the following table:
Length (in mm) Number of leaves $118-126$ $8$ $127-135$ $10$ $136-144$ $12$ $145-153$ $17$ $154-162$ $7$ $163-171$ $5$ $172-180$ $3$
Draw a histogram to represent the data above.
| Length (in mm) | Number of leaves |
| $118-126$ | $8$ |
| $127-135$ | $10$ |
| $136-144$ | $12$ |
| $145-153$ | $17$ |
| $154-162$ | $7$ |
| $163-171$ | $5$ |
| $172-180$ | $3$ |
Draw a histogram to represent the data above.
Medium
View SolutionThe observations $56, 58, 63, x-5, x+1, 75, 81, 85$ have been arranged in ascending order. If the median of the data is $67$,find the value of $x$.
Medium
View SolutionRepresent the following data by a bar graph:
Name of student Kavya Ariv Ahaan Arya Arushi Marks scored $90$ $80$ $50$ $60$ $40$
| Name of student | Kavya | Ariv | Ahaan | Arya | Arushi |
| Marks scored | $90$ | $80$ | $50$ | $60$ | $40$ |
Medium
View SolutionFind the median of the observations $18, 8, 12, 3, 20, 4, 10, 5$.
Easy
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