who is the best cricketer?. batting average in cricket in cricket, a player's batting average...
TRANSCRIPT
![Page 1: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/1.jpg)
Who is the best cricketer?
![Page 2: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/2.jpg)
BATTING AVERAGE IN CRICKET
In cricket, a player's batting average is the total number of runs he has scored divided by the number of times he has been out.
![Page 3: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/3.jpg)
STATISTICS
Statistics, branch of mathematics that deals with the collection, organization, and analysis of numerical data .
![Page 4: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/4.jpg)
STATISTICS
Employing statistics serves two purposes, (1) description and (2) prediction. Statistics are used to describe the characteristics of groups. These characteristics are referred to as variables. Data is gathered and recorded for each variable.
![Page 5: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/5.jpg)
STATISTICS
It also provides tools for prediction and forecasting based on data. Prediction is based on the concept of generalizability
![Page 6: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/6.jpg)
HISTORY
Simple forms of statistics have been used since the beginning of civilization.
![Page 7: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/7.jpg)
HISTORY The pictorial representations or other symbols were used to record numbers of people, animals, and inanimate objects on skins, slabs, sticks of wood, or the walls of caves.
![Page 8: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/8.jpg)
HISTORY
Before 3000 BC the Babylonians used small clay tablets to record tabulations of agricultural yields and of commodities bartered or sold.
![Page 9: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/9.jpg)
HISTORY
The Egyptians analysed the population and material wealth of their country before beginning to build the pyramids in the 31st century BC.
![Page 10: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/10.jpg)
HISTORY
The Roman Empire was the first government to gather extensive data about the population, area, and wealth of the territories that it controlled.
![Page 11: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/11.jpg)
HISTORY
Registration of deaths and births was begun in England in the early 16th century, and in 1662 the first noteworthy statistical study of population.
![Page 12: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/12.jpg)
HISTORY
At present, statistics is a reliable means of describing accurately the values of economic, political, social, psychological, biological, and physical data and serves as a tool to correlate and analyse such data.
![Page 13: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/13.jpg)
HISTORY The work of the statistician is no longer confined to gathering and tabulating data, but is chiefly a process of interpreting the information.
![Page 14: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/14.jpg)
STATISTICAL METHODS STEPS
• COLLECTION OF DATA
• TABULATION AND PRESENTATION OF DATA
• INTERPRETATION OF DATA.
![Page 15: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/15.jpg)
COLLECTION OF DATA:Primary Data –When Data are collected directly it is called Primary Data.
Secondary Data.If they are collected through others than it is called Secondary Data.
![Page 16: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/16.jpg)
TABULATION AND PRESENTATION OF DATA
The collected data are called RAW DATA
![Page 17: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/17.jpg)
TABULATION AND PRESENTATION OF DATA
1. They must be arranged either ascending order or descending order.
2. They are grouped.
3. They are tabulated. 4. Construction of frequency distribution table.
(Grouped / Ungrouped)
![Page 18: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/18.jpg)
INTERPRETATION OF DATA.
(a) From graph(b) Measures Of Central Tendency(c) Measures Of Variability(d) Measures Of Variability(e) Co-relation(f) Mathematical Models
![Page 19: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/19.jpg)
GRAPHICAL REPRESENTATION OF DATA
(i) Pictorial graph (ii) Bar Graph(iii) Histogram(iv) Frequency polygon
![Page 20: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/20.jpg)
GRAPHSGraphs are used to display number information, or data, in a visual way that is easy to understand and interpret. They are usually drawn with two lines, called axes, which meet at a right angle like this. The line going across the page is the horizontal axis, and the line going up the page is the vertical axis. The axes are labeled to show the type of data and the value of the data being shown .
![Page 21: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/21.jpg)
![Page 22: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/22.jpg)
A BAR-LINE GRAPH
![Page 23: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/23.jpg)
LINE GRAPHS
Line graphs can be used to show a relationship between the data on one axis and the data on the other.
![Page 24: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/24.jpg)
BLOCK GRAPHS
These have a block or square to show one unit value of data.
![Page 25: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/25.jpg)
PIE CHARTSThese have a circle divided into parts, or sectors, of different sizes to show different amounts of data. They are called pie charts because they look like pies cut into slices.
![Page 26: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/26.jpg)
BAR GRAPH
![Page 27: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/27.jpg)
HISTOGRAM
![Page 28: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/28.jpg)
FREQUENCY POLYGON
![Page 29: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/29.jpg)
Imagine in a class test you scored 3/5. How do you react? Are you happy with your score of 3 or disappointed? How do you decide? You might calculate your percentage correct, realize it is 60%, and be appalled. But it is more likely that when deciding how to react to your performance, you will want additional information. What additional information would you like?
You will immediately ask your friend , "What is your score?“What is the highest score?“What is my rank?” "How did the class do?“
In other words, the additional information you want is how your test score compares to other students' scores. You therefore understand the importance of comparing your score to the class distribution of scores.
If it is the highest score then you you'll be pleased after all. On the other hand, if 3 is among the lowest scores in the class, you won't be quite so happy.
ANALYSING WITH MEASURE OF CENTRAL TENDENCY
![Page 30: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/30.jpg)
ANALYSING WITH MEASURE OF CENTRAL TENDENCY
For comparison, prediction and making decision we need
mean
median
mode
![Page 31: Who is the best cricketer?. BATTING AVERAGE IN CRICKET In cricket, a player's batting average is the total number of runs he has scored divided by the](https://reader036.vdocuments.mx/reader036/viewer/2022062801/56649e2b5503460f94b18f55/html5/thumbnails/31.jpg)
Assignment for students
• Search the internet, text books and in the library and find How we are
Living with MeanMedianMode