Reference no: EM131188956 , Length: 20
Answer the following questions
All questions are compulsory and each question carries equal marks
I: Define Statistics and explain the characteristics & Uses of Statistics.
ll: what is a statistical error? In what way does it differ from a mistake? Explain the difference between absolute and relative errors.
I: Describe the methods which can be used in the collection of statistical data. stating the advantages and disadvantages of each method.
II: What is the meant by a frequency distribution? Describe briefly the main steps in the preparation of frequency table from the raw data.
I: Represent the total expenditures on various items of a family by a pie diagram
Items

Food

House Rent

Misc. 
Fuel 
Education 
Expenditure (in lts,)

55

20 
33 
20 
17 
II: Describe the Graphical methods used in Statistics, giving their respective advantages and disadvantage also draw up a list of rules for construction of graphs.
I. Compute the Median, Quartiles, Deciles and percentiles of the following Data
Heights (Inches)

57.5

60.0

62.5

65.0

67.5

70.0

72.5

Number

6

26

190

281

412

127

38

II: Find A,M,G,M,H,M of the series 1, 3, 9. 27, 81, 3.
I: Find the A,M, G,M H,M Median and Mode of the following frequency distribution.
Variable

35.39

4044

4549

5054

5559

6064

65.69

Frequency

15

17

35

11

10

15

10

II: Describe the advantages and disadvantages of mean Median and Mode. Explain the maniacal relation between them.