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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)

X

f

2.8

4

3.0

15

3.2

20

3.4

47

3.6

63

3.8

78

4.0

88

4.2

69

4.4

59

4.6

35

4.8

10

5.0

8

5.2

4

 

500

 

 

 

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

100 % right 

1. the values that are countable they are discrete. numeric also. values k darmiyan break be ho sakta ha. like 2.5ml . finite in nature.  discrete

2. people ages can be have different uncountable.

3. people can tell exact that how many times they visit in a month. that is why, it is discrete.

4. tree heights etc are continuous data

its C D D C

any can tell me answers of  questions and formula of mean deviation ? if there any mistake plz quide me

m b yeh e ans aa ra h... i think thk h...

i hope thek ho ge dear phr  b last date tak wait kre ge conformation k lie ap ka soc 101 subject hai ?

main ny palya hi post kr dia ha formula.

solution main formula dia ha . check plz

Han  Muhammad Afzal ab ap k answers correct hain (Y)  

bilkul correct hain.

nae m soc 101 nae h... 

1st wala lage gaaa..!! For Grouped Data Frends.

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