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Question 1: (Marks: 5)


a)      Construct a frequency distribution table where the class interval is 12, the number of classes is 6 and the smallest observation is 49 (lowest class limit). Also build the column of the relative frequency. The data is given below:

74, 49, 103, 95, 90, 118, 52, 88, 101, 96, 72, 56, 64, 110, 97, 59, 62, 96, 82, 65, 85, 105, 116, 91, 83, 99, 52, 76, 84, 90.

Question 2: (Marks: 5)

a)      Compute the mean deviation from the mean for the following data.

(Where Mean = 3.949)


































Question 3:                                                                                                        (Marks: 3+2=5)


a)      The ages of 22 football players are listed below:

66, 73, 68, 54, 25, 38, 67, 69, 74, 53, 52, 72, 55, 75, 37, 24, 13, 12, 11, 26, 39, 23

Make a stem and leaf display for the data.

b)      Which variable (Discrete or Continuous) is more suitable in the following examples?

  • The content of a bottle of fluid is quoted as 1025 ml.
  • People are asked to state their age at their birthday. 
  • People are asked to state how many times in the last month they visited their family doctor.
  • The height of trees at a nursery. 

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Objective(s) of this Assignment:


  • The assignment is being uploaded to build up the concepts about:
  • Variable
  • Frequency Distribution
  • Stem and Leaf
  • Measure of Dispersion

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Replies to This Discussion

first of all arrange the data in ascending order.i.e.

49,52,52,56,59,62,64,65,72,74,76,82,83,84,85,88,90,90,91,95,96,96,97,99,101,103, 105,110, 116,118

Assignmnt no 2 mn x hamen dia hoa ha but f ki tu hamen zarorat ne hoti mean deviation mn. plzz clear my concept. i mean f ka kia karna ha?

again wrong...

 you should not take sum of them.. 

here sum of f = 30..

make frequency dist.

class limits | f | Rf

these r the column 

ayisha ic m just class limits ka colum aye ga ya class bundries ka b aye ga

i think bana phry ga q k ques main frequency distribution table ka kaha gya hi aur table main ye sub ate hi

nhi class limits aur class boundries ka column nhi ae ga

 total 5 columns banen gy:

class limits


tally marks

relative frequency

% relative frequency


to calculate mean deviation we have to use this formula:



please correct if i am wrong


Kia hamein Cumulative frequency ka column banana hai?

no brother we don't need to make the column of cumulative frequency.



thanku dear i hope isi tarah sari assignment sahi se ho gye i m sharing our views tomorrow 

M.D ka mera ans hai 0.3727 is it correct or not ????


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