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The formula to find mean from a grouped ...

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`

A

`(x_i+A)/g`

B

`(x_i-A)`

C

`(x_i-A)/g`

D

`(A-x_i)/g`

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Find bar u in the following cases: sumf_iu_i= 21, sumf_i= 36

Find bar u in the following cases: sumf_iu_i=-5, sumf_i=50

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CHETANA PUBLICATION-Statistics-EXERCISE
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  2. Cumulative frequencies in a grouped frequency table are useful to find...

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

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

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

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

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

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

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

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

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

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

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

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

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

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