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Cumulative frequencies in a grouped freq...

Cumulative frequencies in a grouped frequency table are useful to find…..a)Mean b)Median c)Mode d)All of these

A

Mean

B

Median

C

Mode

D

All of these

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The data for 50 students regarding their marks (out of 100) in English is given below. Take classes 0-10, 10-20, ... and Prepare a frequency distribution table and cumulative frequency table more than or equal to lower limit type : From the prepared table, answer the following question What is the cumulative frequency of equal to or more than type of the class 0-10 ?

The data for 50 students regarding their marks (out of 100) in English is given below. Take classes 0-10, 10-20, ... and Prepare a frequency distribution table and cumulative frequency table more than or equal to lower limit type : From the prepared table, answer the following question How many students obtained 80 or above 80 marks ?

For the given frequency distribution find the median.

The formula to find mean from a grouped frequency table is bar x=A+g((sumf_iu_i)/(sum f_i)) In the formula u_i=….. a) (x_i-A)/g b) (x_i-A) c) (x_i+A)/g d) (A-x_i)/g

CHETANA PUBLICATION-Statistics-EXERCISE
  1. The persons of O-blood group are 40%. The classification of persons ba...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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  19. The class mark of the class interval 120-130 is...a)125 b)122.5 c)120 ...

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  20. The class width of the class interval 133-139 is...a)3 b)5 c)6 d)4

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