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Given below are the ages of 25 studen...

Given below are the ages of 25 students of class IX in a school. Prepare a discrete frequency distribution. 15, 16, 16, 14, 17, 17, 16, 15, 15, 16, 16, 17, 15, 16, 16, 14, 16, 15, 14, 15, 16, 16, 15, 14, 15

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{:(9,11,13),(13,15,17),(10,12,14),(14,16,18),(11,13,?):}

Find the range of the data : 14, 15, 16, 18, 19, 25, 30, 41, 26, 16, 13, 18, 20 and 26.

The marks of 20 students in a test were as follows: 5, 6, 8, 9, 10, 11, 12, 13, 13, 14, 14, 15, 15, 15, 16, 16, 18, 19, 20. Calculate the mean, median and mode.

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RD SHARMA-TABULAR REPRESENTATION OF STATISTICAL DATA -All Questions
  1. The marks obtained by 35 students in an examination are given below...

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  2. For a frequency distribution standard deviation is computed by applyin...

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  3. Given below are the ages of 25 students of class IX in a school. Pr...

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  4. Form a discrete frequency distribution from the following scores: 1...

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  5. The water tax bills (in rupees) of 30 hours in a locality are given...

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  6. Form a grouped frequency distribution from the following data by inc...

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  7. The marks obtained by 40 students of class IX in an examination are...

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  8. The class marks of a distribution are: 17,52,57,62,67,72,77,82,87,9...

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  9. For the following data of daily wages (in rupees0 received by 30 la...

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  10. The class marks of a distribution are 26,31,36,41,46,51,56,61,66,71....

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  11. What do you understand by the word “statistics” in singular form   ...

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  12. Describe some fundamental characteristic of statistics.

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  13. What are (i) primary data? (ii) secondary data? Which of the two -- th...

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  14. Why do we group data?

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  15. Explain the meaning of the following terms: variate         (ii)  ...

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  16. The ages of ten students of a group are given below: The ages have b...

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  17. The monthly pocket money of six friends is given below: Rs. 45, Rs....

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  18. Write the class-size in each of the following: 0-4,5-9,10-14 10-19,...

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  19. The final marks in mathematics of 30 students are as follows: 53,61...

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  20. The weights of new born babies (in kg) in a hospital on a particular...

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