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If the mean of 5 observation x,x+2,x+4,x+6,x+8 is 11, then the mean of first three observations is 8.

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MODERN PUBLICATION-STATISTICS-EXERCISE
  1. True/false Empirical relatin between mean, mode and median is Mode=2Me...

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  2. True/false Median 0,2,2,2,-3.5,-1.5,-3,6,6,5,6 is 3.5.

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  3. True/false If the mean of 5 observation x,x+2,x+4,x+6,x+8 is 11, then ...

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  4. Let m be the mid-point and l be the upper class limit of a class in a ...

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  5. True/false 10 observations 6,14,15,17,x+1,2x-13,30,32,34,43 are writte...

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  6. Fill ups Data collected by an investigator himself is called…….data.

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  7. Fill ups Raw data when presented in ascending or descending order form...

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  8. Fill ups Minimum value on subtraction from maximum value gives………….. .

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  9. Fill ups Mode of the value of data which occurs …………..number of times.

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  10. The besector of an angle divides it into two

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  11. Number of times a particular observation occurs in a given data is cal...

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  12. Fill ups For a raw data, Range+Number of classes, gives………………to form a...

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  13. Fill ups Median of following marks scored by 8 students 20,25,24,17,18...

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  14. The figure formed by joining the mid points of the adjacent sides of a...

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  15. A rectangular sheet of paper 30cmx×18cm can be transformed into the cu...

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  16. The difference between the highest and lowest values of the observatio...

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  17. In the class intervals 10-20, 20-30, the number 20 is included in.

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  18. The mid value of a class interval is 42 and the class size is 10. find...

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  19. The set of poor students in the class is :

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  20. Tallys are usually marked in a bunch of

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