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Using step deviation method, find the me...

Using step deviation method, find the mean of following frequency distribution:

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59.32
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ICSE-MEASURES OF CENTRAL TENDENCY (MEAN, MEDIAN, QUARTILES AND MODE)-EXERCISE 24 (E)
  1. Using step deviation method, find the mean of following frequency dist...

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  2. ∆ABC ~ ∆PQR. AD is the median to BC and PM is the median to QR. Prove ...

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  3. In the given figure, if DE || BC, AE = 8 cm, EC = 2 cm and BC = 6 cm, ...

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  4. The mean of 1,7,5,3,4 and 4 is m. The numbers 3,2,4,2,3,3 and p have m...

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  5. In a malaria epidemic, the number of cases diagnosed were as follows: ...

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  6. In the given figure, XY || QR, PQ/XQ=7/3 and PR = 6.3 cm, find YR

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  7. The marks of 20 students in a test were as follows, 2,6,8,9,10,11,11...

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  8. If PQR is an equilateral triangle and PX ⊥ QR, find the value of PX^2.

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  9. The sides AB and AC and the perimeter P, of ∆ABC are respectively thre...

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  10. The distribution given below, shows the marks obtained by 25 students ...

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  11. The mean of the following distribution is 52 and the frequency of clas...

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  12. In the figure, EF || AC, BC = 10 cm, AB = 13 cm and EC = 2 cm, find AF

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  13. A Mathematics aptitude test of 50 students was recorded as follows: ...

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  14. In the figure ABC and DBC are two right triangles. Prove that AP × PC ...

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  15. Marks obtaind by 40 students in a short assessment is given below, whe...

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  16. Find the mode and the median of the following data 13, 16, 12, 14, 19...

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  17. The median of the following observation 11, 12, 14, (x - 2), (x + 4), ...

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  18. The numbers 6, 8, 10 ,12, 13, and x are arranged in an ascending order...

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  19. (Use a graph paper for this question). The daily pocket expenses of 20...

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  20. In the given figure, QA ⊥ AB and PB ⊥ AB. If AO = 20 cm, BO = 12 cm, P...

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  21. The mean of the following numbers is 68. Find the value of 'x'. 45, ...

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