Karteikarten
Statistics
Karten in diesem Stapel (6)
- 1Ways to compare two sets of data Averages Measures of spread Measures of SkewAverages
The mean and median can be used to give a quick comparsion of two or more sets of data. - 2Raw data can be organised into a frequency table. These tables usually- Have 3 columns 1st gives the vaules or names of the different data 2nd shows a mark for each piece of data aka the tally 3rd is the frequency, which is got by adding up the tally Freuqency tables are drawn to collect or record data straight intoWe're able to interpret data from a frequency table
For example
The total number of matches that have been played
against
The total number of goals scored - 3Composite bar charts show proportions in the data. They have single bars and are spilt up into sections. These sections show frequencies for different categories that make up the whole bar.Compostie bar charts are easy to read of total frequencies, as well as being able to compare different catergories.
- 4The gaps between each of the bars should be the same width along the x-axis, the y-axis should also be evenly spread out, with both axes labeled.Composite bar charts data might be in %, with the height of the whole bar representing 100%.
- 5Pie charts show the proportion aswell as showing the data divided into catergories. The size of each sector will show the proportion of the total data in that category.To draw a pie chart you have to find the angle for each sector.
Angle = Number in category
----------------------- X100
Total number - 6Comparative pie charts use areas. When comparing pie charts you want their areas to be proportinal to the population they represent.add something here after
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- Beschreibung
- A-Level Stastics Karteikarten am Statistics , erstellt von Holly P am 28/04/2015.
- Erstellt von
- Holly P
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