Module+10+Statistics

MODULE 10 STATISTICS Scheme of Work || Scheme of Work || || Core Assignment Module 10 || [|Pie Charts] ||
 * EXTENDED || CORE ||
 * Can Do Statements
 * Extended Assignment Module 10
 * A Discrete (counted) data, bar charts, pie charts, tables of data

The column on the right represent the ten number (such as 10, 30, 410, etc.) The column on the left shows the single digit (the 7 in seventeen, the 5 in 25, etc). We can use stem and leaf diagrams for working out things such as averages.
 * B Continous data, histograms, stem and leaf graphs
 * B Continous data, histograms, stem and leaf graphs
 * Stem and leaf graphs** area way of sorting alot of date clearly an in order.

Using the example above; There are 18 results. Half of 18 is 9. Count 9 in, and the number is 52. So, the medium is 52. Example: 30+37+40+43+44+44+45+51+52+53+54+56+56+62+64+65+66+74= 836 836/18=46.4 [|Stem andLeaf plots] [|Stem and Leaf plots] || Mode: The most common number in a set of results. Medium: The very middle number in a set of results. Mean: All the results added together and divided by the total number of results. Range: The distance from the lowest to the highest result. Inter-quartile range: Quartiles are basically the results diveded into quarters. The inter-quartile range is the upper quartile minus the lower quartile. Example: 2,2,3,5,5,6,7,8,10,11,11,13,15,16,16,16,16,17,19,21 What's the mode? The most common number is 16, so that's the mode. What's the medium? The total amount of results is 20, and half of twenty is 10. Count 10 results in, and you get 11. What's the mean? All the results added together is 195. 195 divided by 20 is 9.75, so that's the mean. The mean is counted as the most reliable type of average. What's the range? The highest number, 21, minus the lowest number, 2, is 19. That's the range. What's the Interquartile range?
 * The Mode:** look for the most common number.
 * The Medium:** This is the very middle number in a range of numbers. Count how many results there are in total, and find the middle numner. (If there are ten results, the middle would be five). Count inwards to this number, and that's the medium.
 * The Mean;** Same as always. Add all the results together, divide by the total number of results.
 * C __Mean, median, mode, range and inter-quartile range__

[|Median, mode and range] [|Mean, Median, and Mode] || [|Scatterplots on the GDC]
 * D Bi-variate data, scatter graphs, lines of bestfit, linear regression

[|Regression on the GDC] || [|histograms] [|Making histograms] || This is a cumalitive frequency table. Cumilitive frequency is different from normal frequency, because you add the previous frequency to the current one. You see? 7+9=16, and 16+15=31, and 31+4=25.... We make these tables mainly so they can be used in Cumilitive Frequency, or Bell, Graphs. You can recognize these graphs by their signiture 's' shape. When plotting these graphs, remember that the poitns are always plotted in the upper-most boundary. So, if we look at the aboove table, for 1-2 days, I would plot the point at 2.
 * E Histograms - unequal class widths
 * F Cumulative Frequency Curves

[|Cumulative Frequency]

[|GCSE Bite Size Link]

[|Wikipedia Page]

This set of lectures is excellent: [|Daniel Judge Lectures] ||  ||