NDA MATHS QUESTION BANK

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STATISTICS



  1. Let the observation at hand be
    arranged in increasing order. Which
    one of the following measures will not
    be affected when the smallest and the
    largest observations are removed?
    (a) Mean (b) Median (c) Mode (d)
    Standard deviation

  2. Directions (Qs. 1 to 4) Study the pie
    chart given below and answer the


questions that follow.
The following pie chart gives the
distribution of funds in a five year plan
under the major heads of development
expenditures:
Agriculture (A), Industry (B), Education
(C), Employment (D), and
Miscellaneous (E).
The total allocation is 36000 (in crore
of rupees).


  1. Which head is allocated the
    maximum funds?
    (a) Agriculture (b) Industry
    (c)Employment (d) Miscellaneous

  2. How many money (in crore) is
    allocated to Education?
    (a) 3000 (b) 6000 (c) 9000 (d) 10800

  3. How much money (in crore) is
    allocated to both Agriculture and
    Employment?
    (a) 20000 (b) 21000


(c) 24000 (d) 27000



  1. How much excess money (in crore) is
    allocated to Miscellaneous over
    Education?
    (a) 3600 (b) 4200 (c) 4500 (d) 4800
    3. If the values 1,^ ,^ ,^ ,^ ,........, occur at
    frequencies 1, 2, 3, 4, 5,.....n
    respectively, in a frequency
    distribution, then the mean is:
    (a) 1 (b) n (c)^ (d)
    4. The frequency distribution of a
    variate X is as given below


X 2 3 4 5 6
Frequency 2 7 14 22 30

What is the cumulative frequency of
variate X= 5?
(a) 36 (b) 44 (c) 45 (d) 52


  1. Directions (Qs. 1 to 2) The
    following table gives the continuous
    frequency distribution of a continuous
    variable X.


Class
Interval

0 -


10


10 -


20


20 -


30


30 -


40


40 -


50


Frequency 5 10 20 5 10

A

E
B

(^) C
D (^)
90 
75 
45 
30 
120 

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