plus one statistics presentation teachers and students can use this for a quick revision

1. PRESENTATION OF DATA TEXTUAL TABULAR GRAPHIC

3. TITLE

4. HEAD NOTE

5. STUB (RAW HEAD)

6. BOX HEAD

7. BODT OR FIELD

8. FOOT NOTE

10. LIMITATIONS ONLY APPROXIMATE PICTURE OF DATA ONLY FOR COMPARATIVE STUDIES CAPABLE OF BEING MISUSED EASILY LIMITED AMOUNT OF INFORMATION MEAN ONLY FOR LAYMAN

11. SIMPLE BAR DIAGRAM

12. SUB DIVIDED BAR DIAGRAM

13. MULTIPLE BAR DIAGRAM

14. PERCENTAGE BAR DIAGRAM

15. PIE DIAGRAM

16. PIE CHART

17. PICTOGRAMS PICTOGRAMS ARE PICTORIAL REPRESENTATION OF STATISTICAL DATA ATTRACTS LAYMAN DIFFICULT TO CONSTRUCT NOT GIVE MINUTE DETAILS

18. CARTOGRAMS CARTOGRAMS ARE STATISTICAL MAP PRESENTATION WHICH ARE USED TO GIVE DATA OVER A GEOGRAPHICAL AREA. RAIN FALL IN INDIA DENSITY OF POPULATION

19. HISTOGRAM

20. FREQUENCY POLYGON

21. FREQUENCY CURVES FREQUENCY CURVES ARE SMOOTH CURVED LINES OVER FREQUENCY POLYGON AREA UNDER POLYGON AND CURVE ARE SAME

22. OGIVES LESS THAN OGIVES MORE THAN OGIVES

24. OGIVE BY LESS THAN METHOD

25. OGIVE BY MORE THAN

26. TIME SERIES GRAPH

27. INDEX NUMBERS INDEX NUMBER MEASURE CHANGES IN A VARIABLE WITH RESPECT TO TIME

28. SIMPLE INDEX NUMBERS P01= INDEX NUMBER OF CURRENT YEAR ∑P1 = TOTAL OF CURRENT YEAR PRICES ∑P0 = TOTAL OF BASE YEAR PRICES

29. Construct index number for2000 on the base of 1991

30. price in 2000 were 27.96% higher than 1999 price

31. Construct index number for1980 on the base of 1979

32. Price increased 20% in the year 1990 than 1989

33. Weighted index number(Laspeyers method) Here base year quantities(q0) are taken as weights

34. Construct weighted index number for1999 on the base of 1998

35. solution

37. Construct weighted index number

38. Measures of central tendencies Average AN AVERAGE VALUE IS A SINGLE VALUE THAT IS USED TO REPRESENT ALL THE VALUES IN THE SERIES TYPES OF AVERAGES ARITHMETIC MEAN MEDIAN MODE

39. ARITHMETIC MEAN MEAN IS OBTAINED BY DEVIDING THE SUM OF GIVEN OBSERVATION BY THEIR NUMBER

40. INDIVIDUAL SERIES FIND MEAN Arithmetic mean = = 17

41. Discrete series

42. CONTINUOUS FREQUENCY DISTRIBUTION

43. MEDIAN MEDIAN IS THE MIDDLE MOST OBSERVATION,AFTER THE OBSERVATION ARRANGED IN ASCENDING OR DECENDING ORDER OF THE MAGNITUDE

44. N=11 (n is odd) MEDIAN = MEDIAN-INDIVIDUAL SERIES

45. IF n IS EVEN median =

46. Median – discrete series 20th ITEM 20th item lies in 23 cf the size of item is 10 or median is 10

47. CONTINUOUS SERIES - MEDIAN L= lower limit of median class Cf = cumulative frequency of class preceding median class. F = frequency of median class C = class interval of median class

48. Median class80/2=4040 lies in 140-160 class =140+6.67=146.67

49. MODE MODE IS THE MOST FREQUENT OBSERVATION INDIVIDUAL SERIES-BY INSPECTION U CAN FIND 11,12,11,13,10 MODE=11 DISCRETE SERIES– ITEM WITH HIGH FREQUENCY VALUE 12 HAS HIGH FREQENCY THEREFORE MODE = 12

50. MODE- CONTINUOUS SERIES L1 = Lower limit of modal class F1,f2 = frequof classes just preceding and Succeeding modal class C = class interval of modal class

51. Compute mode Highest frequency is 30 Modal class-20-25 20+2.4 =22.4

52. LOCATING MODE GRAPHICALLY

53. DISPERSION DISPERSION MEASURES THE EXTEND TO WHICH THE ITEM VARY FROM SOME CENTRAL VALUE THEY ARE AVERAGES OF DEVIATION TAKEN FROM AN AVERAGE

54. RANGE SIMPLEST MEASURE OF DISPERSION RANGE = L-S L = LARGEST ITEM S = SMALLEST ITEM COEFFICIENT OF RANGE=

55. COMPUTE RANGE AND COEFFICIENT OF RANGE RANGE =L-S L=230 S = 30 230-30=200 COEFFICIENT OF RANGE=

56. CORRELATION CORRELATION IS A NUMERICAL MEASURE OF ASSOCIATION BETWEEN TWO VARIABLES TYPES POSITIVE OR NEGATIVE CORRELATION LENEAR AND NON LENEAR CORRELATION LINEAR THE RATIO=1:7

57. THANK YOU GOD BLESS YOU