Some fictional examples to show how statistics is like.
RandomGroup did a survey to find out what countries the public supported in the 2010 South Africa World Cup. The sample size was 100. The results were collated and are as follows:
25% of the people surveyed supported Brazil.
15% of the people surveyed supported Spain.
30% of the people surveyed suppoted England.
10% of the people surveyed supported Argentina.
15% of the peo ple surveyed supported France.
3% of the people surveyed supported South Korea.
2% of the people surveyed supported Portugal.
The results can be shown in different forms:
Bar Graph Pie Chart
From these presentations, we can calculate the mean, median, mode and some ratios regarding the data collected.
Mean of the percentage of people who support a country: 100/7= 14.3 (3sf) Median: 2, 3, 10, 15, 15, 25, 30 Mode: 15 (appears twice) Ratio of people supporting Brazil to people supporting England: 5:6 Ratio of people supporting European countries to other countries: 31:19
A class of 25 pupils sat for an English, a Math and a Science test and the results are as of follows:
Pupils who scored an A1 for English: Capello, Barry, Lennon, Rooney, Cole, Terry, Ferdinand, Johnson, Gerrard, Lampard, Carrick, Philips, Wright, Hart Pupils who scored an A1 for Math: Capello, Berbatov, Ronaldo, Wiltord, Barry, Lampard, Gerrard, Rooney, Ferguson, Messi, Giggs, Lennon Pupils who scored an A1 for Science: Capello, Boateng, Drogba, King, Ferguson, Messi, Carrick, Cole, Giggs
The results can be represented in the form of a venn diagram:
Some fictional examples to show how statistics is like.
RandomGroup did a survey to find out what countries the public supported in the 2010 South Africa World Cup. The sample size was 100. The results were collated and are as follows:
25% of the people surveyed supported Brazil.15% of the people surveyed supported Spain.
30% of the people surveyed suppoted England.
10% of the people surveyed supported Argentina.
15% of the peo ple surveyed supported France.
3% of the people surveyed supported South Korea.
2% of the people surveyed supported Portugal.
The results can be shown in different forms:
Bar Graph
Pie Chart
From these presentations, we can calculate the mean, median, mode and some ratios regarding the data collected.
Mean of the percentage of people who support a country: 100/7= 14.3 (3sf)Median: 2, 3, 10, 15, 15, 25, 30
Mode: 15 (appears twice)
Ratio of people supporting Brazil to people supporting England: 5:6
Ratio of people supporting European countries to other countries: 31:19
A class of 25 pupils sat for an English, a Math and a Science test and the results are as of follows:
Pupils who scored an A1 for English: Capello, Barry, Lennon, Rooney, Cole, Terry, Ferdinand, Johnson, Gerrard, Lampard, Carrick, Philips, Wright, HartPupils who scored an A1 for Math: Capello, Berbatov, Ronaldo, Wiltord, Barry, Lampard, Gerrard, Rooney, Ferguson, Messi, Giggs, Lennon
Pupils who scored an A1 for Science: Capello, Boateng, Drogba, King, Ferguson, Messi, Carrick, Cole, Giggs
The results can be represented in the form of a venn diagram: