Given n numbers, n > l, of which, one is 1-1n and all others a

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 Multiple Choice QuestionsMultiple Choice Questions

11.

Ten observations 5, 9, 14, 15, x+1, 2x-13, 28, 30, 32, 34 are written in ascending order.The median of the data is 24. Find the value of x.

  • 20

  • 19

  • 21

  • 16


12.

The expenditure of the family in a month is given in the figure below. If the difference of expenditure between education and travel is4000, then what will be the total income of the family?

 

  • 50000

  • 40000

  • 60000

  • 30000


13.

When recast, the radius of an iron rod is made one-fourth. If its volume remains constant, then the new length will become

  • 116 times of the original

  • 16 times of the original

  • 4 times of the original

  • times of the original


14.

The mean of the median, mode and range of the observations 6, 6, 9, 14, 8, 9, 9, 8 is
 

  • 10.3

  • 8.5

  • 10.5

  • 8.8 


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15.

According to the given graph, between which two consecutive months was the change in the auto sales the greatest?

  • April-May

  • May-June

  • January-February

  • February-March


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16.

Given n numbers, n > l, of which, one is 1-1n and all others are 1's. The mean of the n numbers is

  • n-1n

  • 1-1n2

  • 1

  • n-1n2


B.

1-1n2

Sum of n numbers

{1+1+1+........(n-1) times} +1-1n

 Mean of these numbers = n-1+1-1nn= 1-1n2


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17.

Which one is correct for the following data?

-1,3,2,0,1,6,8,5,10,11,5

  • Mean= Median =Mode

  • Mean= Mode

  • Mode= Median

  • Mean= 5


18.

The total adults in a city are 6000. The various sections of them are indicated below.

 

I   employes in the public sector
II  employes in the private sector
III employes in the corporate sector
IV  self employed
V   unemployed

What percentage of the employed persons is self employed?

  • 5519

  • 1915

  • 20

  • 5


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19.

The mean of 10 numbers is 0. If 72 and-12 are included in these numbers, the new mean will be

  • 0

  • 5

  • 6

  • 60


20.

What is the probability that a randomly selected factor from positive factors of 72 is less than 11?

  • 512

  • 711

  • 712

  • 710


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