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The following table shows the number of ...

The following table shows the number of students and the time they utilized daily for their studies. Find the mean time spent by students for their studies by direct method.

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CHETANA PUBLICATION-Statistics-EXERCISE
  1. The following table shows the number of students and the time they uti...

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  2. Find the median of the data 54,63,66,72,98,87,92.

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  3. Write the upper class limit and the lower class limit of the class 25-...

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  4. The mean of eight numbers is 35.If a number is excluded then the mean ...

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  5. The persons of O-blood group are 40%. The classification of persons ba...

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  6. Different expenditures incurred on the construction of a building were...

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  7. Cumulative frequencies in a grouped frequency table are useful to find...

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  8. The formula to find mean from a grouped frequency table is bar x=A+g((...

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  9. The formula to find mean by direct method is ..........

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  10. Class width of any class interval is.....a) Lower limit + upper limit ...

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  11. The formula for median is.... a) L+(N/2-c.f.)h/fb)L/2+(N/2-c.f.)h/f c)...

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  12. The formula to find the mean deviation(bar d) in Assumed mean method i...

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  13. In step deviation method, ui is given by...a)A+bar d b)(xi-A)/g c)(xi+...

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  14. If sum fi di =1885 and sum fi=100, then the value of bar d is...a)1.88...

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  15. The formula of mode is....a)L+[(f1-f0)/(2f1-f0-f2)] xxh b)L-[(f1-f0)/(...

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  16. The formula to find mean by step deviation method is....a)(sum fiui)/(...

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  17. A pie diagram represents the number of valid votes obtained by four st...

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  18. A pie diagram represents the number of valid votes obtained by four st...

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  19. A pie diagram represents the number of valid votes obtained by four st...

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  20. A pie chart gives the marks scored in an examination by a student in v...

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  21. A pie chart gives the marks scored in an examination by a student in v...

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