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
Mode of the data $15, 14, 19, 20, 14, 15, 16, 14, 15, 18, 14, 19, 15, 17, 15$ is
Medium
View SolutionTen observations $6, 14, 15, 17, x+1, 2x-13, 30, 32, 34, 43$ are written in an ascending order. The median of the data is $24$. Find the value of $x$.
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View SolutionBelow is the distribution of "more than" type of marks obtained by $50$ students in a $100$ marks examination. Prepare the grouped frequency distribution from that.
Obtained marks No. of Students $0$ or more than $0$ $50$ $20$ or more than $20$ $48$ $40$ or more than $40$ $40$ $60$ or more than $60$ $31$ $80$ or more than $80$ $10$
| Obtained marks | No. of Students |
| $0$ or more than $0$ | $50$ |
| $20$ or more than $20$ | $48$ |
| $40$ or more than $40$ | $40$ |
| $60$ or more than $60$ | $31$ |
| $80$ or more than $80$ | $10$ |
Medium
View SolutionConsider the data $: 2, 3, 9, 16, 9, 3, 9$. Since $16$ is the highest value in the observations,is it correct to say that it is the mode of the data? Give reason.
Easy
View SolutionRepresent the following data by a bar graph:
Score Frequency $1$ $15$ $2$ $13$ $3$ $20$ $4$ $17$ $5$ $20$ $6$ $15$
| Score | Frequency |
|---|---|
| $1$ | $15$ |
| $2$ | $13$ |
| $3$ | $20$ |
| $4$ | $17$ |
| $5$ | $20$ |
| $6$ | $15$ |
Medium
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