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There are 40 students in a class. Their ...

There are 40 students in a class. Their average mark in English is 55. The mean of 10 girl students is 58. Find the mean of the boy students in the class.

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VGS PUBLICATION-BRILLIANT-STATISTICS-EXERCISE
  1. Write the formula for finding mean of ungrouped frequency distribution...

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  2. Find the median marks in the data.

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  3. There are 40 students in a class. Their average mark in English is 55....

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  4. Information collected in the form of facts, numerical figures, tables ...

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  5. Data collected from a source like registers is called

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  6. Range of the data "18, 24, 15, 17, 33, 16, 29, 45, 12, 3, 33, 21" is

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  7. 0- 10, 11- 20, 21 - 30, 31 -40. The real lower limit of the class 21 -...

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  8. In the above problem a5=…

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  9. The temperatures of a city recorded during a week are 42^@ , 35^@ , 44...

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  10. In a deviation problem sumfidi=-12 and A=15, sumf=20, then barx=

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  11. Median of 3, 7, 4, 6 and 12 is

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  12. Median of the data 5, 8, 9, x, 11, 13 is 9.5 (given that data is arran...

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  13. Formula to find mean for a grouped data is

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  14. Mode of the data 3, 7, 8, 8, 7, 6, 8, 4, 3, 11 is

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  15. Mean of the data   x1 , x2 , x3 , x4 , x5  is 15. If each observation ...

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  16. If the mean of the data 12, 8, 6, 3, 9 is 7.6. If 5 is added to each o...

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  17. Mean of the data 8, 7, 6, 14, 12, 10, 20, 16, 15 and 14 is 12.2. If ea...

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  18. The median of n observations arranged in ascending order when n is eve...

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  19. A data having two modes is

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  20. The mode of the data 8, 5, 3, 8, 3, 6, 5, 3, 7, 5 and 11 is

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