Statistis presentatio
Upcoming SlideShare
Loading in...5
×
 

Statistis presentatio

on

  • 1,053 views

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

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

Statistics

Views

Total Views
1,053
Views on SlideShare
1,053
Embed Views
0

Actions

Likes
0
Downloads
10
Comments
0

0 Embeds 0

No embeds

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

    Statistis presentatio Statistis presentatio Presentation Transcript

    • PRESENTATION OF DATA
      TEXTUAL
      TABULAR
      GRAPHIC
    • FUNCTIONAL PARTS OF TABLE
      • TABLE NUMBER
      • TITLE
      • HEAD NOTE
      • STUB (RAW HEAD)
      • BOX HEAD
      • BODT OR FIELD
      • FOOT NOTE
      • SOURCE NOTE
    • SIGNIFICANCE OF GRAPHS
      ATTRACTIVE PRESENTATION
      SIMPLIFY COMPLEXITY
      READILY INTELLIGIBLE
      FACILITATE COMPARISON
      SAVE TIME
      HAVE GREAT MEMORISING EFFECT
      CAN LOCATE MEDIAN MODE Etc.
    • LIMITATIONS
      ONLY APPROXIMATE PICTURE OF DATA
      ONLY FOR COMPARATIVE STUDIES
      CAPABLE OF BEING MISUSED EASILY
      LIMITED AMOUNT OF INFORMATION
      MEAN ONLY FOR LAYMAN
    • SIMPLE BAR DIAGRAM
    • SUB DIVIDED BAR DIAGRAM
    • MULTIPLE BAR DIAGRAM
    • PERCENTAGE BAR DIAGRAM
    • PIE DIAGRAM
    • PIE CHART
    • PICTOGRAMS
      PICTOGRAMS ARE PICTORIAL REPRESENTATION OF STATISTICAL DATA
      ATTRACTS LAYMAN
      DIFFICULT TO CONSTRUCT
      NOT GIVE MINUTE DETAILS
    • CARTOGRAMS
      CARTOGRAMS ARE STATISTICAL MAP PRESENTATION WHICH ARE USED TO GIVE DATA OVER A GEOGRAPHICAL AREA.
      RAIN FALL IN INDIA
      DENSITY OF POPULATION
    • HISTOGRAM
    • FREQUENCY POLYGON
    • FREQUENCY CURVES
      FREQUENCY CURVES ARE SMOOTH CURVED LINES OVER FREQUENCY POLYGON
      AREA UNDER POLYGON AND
      CURVE ARE SAME
    • OGIVES
      LESS THAN OGIVES
      MORE THAN OGIVES
    • OGIVE BY LESS THAN METHOD
    • OGIVE BY MORE THAN
    • TIME SERIES GRAPH
    • INDEX NUMBERS
      INDEX NUMBER MEASURE CHANGES IN A VARIABLE WITH RESPECT TO TIME
    • SIMPLE INDEX NUMBERS
      P01= INDEX NUMBER OF CURRENT YEAR
      ∑P1 = TOTAL OF CURRENT YEAR PRICES
      ∑P0 = TOTAL OF BASE YEAR PRICES
    • Construct index number for2000 on the base of 1991
    • price in 2000 were 27.96% higher than 1999 price
    • Construct index number for1980 on the base of 1979
    • Price increased 20% in the year 1990 than 1989
    • Weighted index number(Laspeyers method)
      Here base year quantities(q0) are taken as weights
    • Construct weighted index number for1999 on the base of 1998
    • solution
    • Construct weighted index number
    • 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
    • ARITHMETIC MEAN
      MEAN IS OBTAINED BY DEVIDING THE SUM OF GIVEN OBSERVATION BY THEIR NUMBER
    • INDIVIDUAL SERIES
      FIND MEAN
      Arithmetic mean =
      = 17
    • Discrete series
    • CONTINUOUS FREQUENCY DISTRIBUTION
    • MEDIAN
      MEDIAN IS THE MIDDLE MOST OBSERVATION,AFTER THE OBSERVATION ARRANGED IN ASCENDING OR DECENDING ORDER OF THE MAGNITUDE
    • N=11 (n is odd)
      MEDIAN =
      MEDIAN-INDIVIDUAL SERIES
    • IF n IS EVEN median =
    • Median – discrete series
      20th ITEM
      20th item lies in 23 cf the size of item is 10 or median is 10
    • 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
    • Median class80/2=4040 lies in 140-160 class
      =140+6.67=146.67
    • 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
    • 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
    • Compute mode
      Highest frequency is 30
      Modal class-20-25
      20+2.4 =22.4
    • LOCATING MODE GRAPHICALLY
    • DISPERSION
      DISPERSION MEASURES THE EXTEND TO WHICH THE ITEM VARY FROM SOME CENTRAL VALUE
      THEY ARE AVERAGES OF DEVIATION TAKEN FROM AN AVERAGE
    • RANGE
      SIMPLEST MEASURE OF DISPERSION
      RANGE = L-S
      L = LARGEST ITEM
      S = SMALLEST ITEM
      COEFFICIENT OF RANGE=
    • COMPUTE RANGE AND COEFFICIENT OF RANGE
      RANGE =L-S
      L=230
      S = 30
      230-30=200
      COEFFICIENT OF RANGE=
    • 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
    • THANK YOU
      GOD BLESS YOU