Upcoming SlideShare
×

# Statistis presentatio

1,544 views
1,437 views

Published on

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

Published in: Technology, Sports
1 Like
Statistics
Notes
• Full Name
Comment goes here.

Are you sure you want to Yes No
• Be the first to comment

Views
Total views
1,544
On SlideShare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
15
0
Likes
1
Embeds 0
No embeds

No notes for slide

### Statistis presentatio

1. 1. PRESENTATION OF DATA<br />TEXTUAL<br />TABULAR<br />GRAPHIC<br />
2. 2. FUNCTIONAL PARTS OF TABLE<br /><ul><li>TABLE NUMBER
3. 3. TITLE
7. 7. BODT OR FIELD
8. 8. FOOT NOTE
9. 9. SOURCE NOTE</li></li></ul><li>SIGNIFICANCE OF GRAPHS<br />ATTRACTIVE PRESENTATION<br />SIMPLIFY COMPLEXITY<br />READILY INTELLIGIBLE<br />FACILITATE COMPARISON<br />SAVE TIME<br />HAVE GREAT MEMORISING EFFECT<br />CAN LOCATE MEDIAN MODE Etc.<br />
10. 10. LIMITATIONS<br />ONLY APPROXIMATE PICTURE OF DATA<br />ONLY FOR COMPARATIVE STUDIES<br />CAPABLE OF BEING MISUSED EASILY<br />LIMITED AMOUNT OF INFORMATION<br />MEAN ONLY FOR LAYMAN<br />
11. 11. SIMPLE BAR DIAGRAM<br />
12. 12. SUB DIVIDED BAR DIAGRAM<br />
13. 13. MULTIPLE BAR DIAGRAM<br />
14. 14. PERCENTAGE BAR DIAGRAM<br />
15. 15. PIE DIAGRAM<br />
16. 16. PIE CHART<br />
17. 17. PICTOGRAMS<br />PICTOGRAMS ARE PICTORIAL REPRESENTATION OF STATISTICAL DATA<br />ATTRACTS LAYMAN<br />DIFFICULT TO CONSTRUCT<br />NOT GIVE MINUTE DETAILS<br />
18. 18. CARTOGRAMS<br />CARTOGRAMS ARE STATISTICAL MAP PRESENTATION WHICH ARE USED TO GIVE DATA OVER A GEOGRAPHICAL AREA.<br />RAIN FALL IN INDIA<br />DENSITY OF POPULATION<br />
19. 19. HISTOGRAM<br />
20. 20. FREQUENCY POLYGON<br />
21. 21. FREQUENCY CURVES<br />FREQUENCY CURVES ARE SMOOTH CURVED LINES OVER FREQUENCY POLYGON<br />AREA UNDER POLYGON AND<br />CURVE ARE SAME<br />
22. 22. OGIVES<br />LESS THAN OGIVES <br />MORE THAN OGIVES<br />
23. 23.
24. 24. OGIVE BY LESS THAN METHOD<br />
25. 25. OGIVE BY MORE THAN<br />
26. 26. TIME SERIES GRAPH<br />
27. 27. INDEX NUMBERS<br />INDEX NUMBER MEASURE CHANGES IN A VARIABLE WITH RESPECT TO TIME<br />
28. 28. SIMPLE INDEX NUMBERS<br />P01= INDEX NUMBER OF CURRENT YEAR<br />∑P1 = TOTAL OF CURRENT YEAR PRICES<br />∑P0 = TOTAL OF BASE YEAR PRICES<br />
29. 29. Construct index number for2000 on the base of 1991 <br />
30. 30. price in 2000 were 27.96% higher than 1999 price<br />
31. 31. Construct index number for1980 on the base of 1979 <br />
32. 32. Price increased 20% in the year 1990 than 1989<br />
33. 33. Weighted index number(Laspeyers method)<br />Here base year quantities(q0) are taken as weights<br />
34. 34. Construct weighted index number for1999 on the base of 1998<br />
35. 35. solution<br />
36. 36.
37. 37. Construct weighted index number<br />
38. 38. Measures of central tendencies<br />Average<br />AN AVERAGE VALUE IS A SINGLE VALUE THAT IS USED TO REPRESENT ALL THE VALUES IN THE SERIES<br />TYPES OF AVERAGES<br />ARITHMETIC MEAN<br />MEDIAN<br />MODE<br />
39. 39. ARITHMETIC MEAN<br />MEAN IS OBTAINED BY DEVIDING THE SUM OF GIVEN OBSERVATION BY THEIR NUMBER<br />
40. 40. INDIVIDUAL SERIES<br />FIND MEAN<br />Arithmetic mean = <br />= 17<br />
41. 41. Discrete series<br />
42. 42. CONTINUOUS FREQUENCY DISTRIBUTION<br />
43. 43. MEDIAN<br />MEDIAN IS THE MIDDLE MOST OBSERVATION,AFTER THE OBSERVATION ARRANGED IN ASCENDING OR DECENDING ORDER OF THE MAGNITUDE<br />
44. 44. N=11 (n is odd)<br />MEDIAN =<br />MEDIAN-INDIVIDUAL SERIES<br />
45. 45. IF n IS EVEN median =<br />
46. 46. Median – discrete series<br />20th ITEM<br />20th item lies in 23 cf the size of item is 10 or median is 10<br />
47. 47. CONTINUOUS SERIES - MEDIAN<br />L= lower limit of median class<br />Cf = cumulative frequency of <br /> class preceding median class.<br />F = frequency of median class<br />C = class interval of median class <br />
48. 48. Median class80/2=4040 lies in 140-160 class<br />=140+6.67=146.67<br />
49. 49. MODE<br />MODE IS THE MOST FREQUENT OBSERVATION<br />INDIVIDUAL SERIES-BY INSPECTION U CAN FIND<br />11,12,11,13,10 MODE=11<br />DISCRETE SERIES– ITEM WITH HIGH FREQUENCY<br />VALUE 12 HAS HIGH FREQENCY THEREFORE<br />MODE = 12<br />
50. 50. MODE- CONTINUOUS SERIES<br />L1 = Lower limit of modal class<br />F1,f2 = frequof classes just preceding and <br /> Succeeding modal class<br />C = class interval of modal class<br />
51. 51. Compute mode<br />Highest frequency is 30<br />Modal class-20-25<br />20+2.4 =22.4<br />
52. 52. LOCATING MODE GRAPHICALLY<br />
53. 53. DISPERSION<br />DISPERSION MEASURES THE EXTEND TO WHICH THE ITEM VARY FROM SOME CENTRAL VALUE<br />THEY ARE AVERAGES OF DEVIATION TAKEN FROM AN AVERAGE<br />
54. 54. RANGE<br />SIMPLEST MEASURE OF DISPERSION<br /> RANGE = L-S<br />L = LARGEST ITEM<br />S = SMALLEST ITEM<br /> COEFFICIENT OF RANGE=<br />
55. 55. COMPUTE RANGE AND COEFFICIENT OF RANGE<br />RANGE =L-S<br />L=230<br />S = 30<br />230-30=200<br />COEFFICIENT OF RANGE=<br />
56. 56. CORRELATION<br />CORRELATION IS A NUMERICAL MEASURE OF ASSOCIATION BETWEEN TWO VARIABLES<br />TYPES<br />POSITIVE OR NEGATIVE CORRELATION<br />LENEAR AND NON LENEAR CORRELATION<br />LINEAR THE RATIO=1:7<br />
57. 57. THANK YOU <br />GOD BLESS YOU<br />