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  <title>Revise smart - latest notes </title>
  <link>http://www.revisesmart.co.uk/</link>
  <description>The latest revision notes added to our database</description>
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			<title>Estimating variance</title>
			<link>http://www.revisesmart.co.uk/maths/statistics-2/estimating-variance.html</link>
			<description>AS and A level maths revision of statistics - looking at estimating the variance and mean of frequency tables</description>
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				  <item>
			<title>The chi squared test</title>
			<link>http://www.revisesmart.co.uk/maths/statistics-2/the-chi-squared-test.html</link>
			<description>AS and A level revision of the chi squared test for statistics 2. Looking at contingency tables for MEI/OCR statistics</description>
		  </item>
				  <item>
			<title>The poisson distribution</title>
			<link>http://www.revisesmart.co.uk/maths/statistics-2/the-poisson-distribution.html</link>
			<description>AS and A level mathematics revision of statistics 2 - looking an the poisson distribution. Looking at situations leading to a poisson distirbution and under which it is likely to be an appropriate model</description>
		  </item>
				  <item>
			<title>The least squares regression line</title>
			<link>http://www.revisesmart.co.uk/maths/statistics-2/the-least-squares-regression-line.html</link>
			<description>AS and A level maths revision of statistics 2 - looking at the least squared regression line</description>
		  </item>
				  <item>
			<title>Rank correlation coefficient</title>
			<link>http://www.revisesmart.co.uk/maths/statistics/rank-correlation-coefficient.html</link>
			<description>AS and A level maths revision of statistics - looking at Spearman's rank correlation coefficient in S2 of the MEI/OCR exam</description>
		  </item>
				  <item>
			<title>Scatter diagrams</title>
			<link>http://www.revisesmart.co.uk/maths/statistics-2/scatter-diagrams.html</link>
			<description>AS and A level maths revision - revising statistics 2 - bivariate data - scatter diagrams and dependent and independent variables.</description>
		  </item>
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			<title>Product moment correlation coefficient</title>
			<link>http://www.revisesmart.co.uk/maths/statistics-2/product-moment-correlation-coefficient.html</link>
			<description>AS and A level maths revision of statistics 2 - product moment correlation of bivariate data</description>
		  </item>
				  <item>
			<title>Solving algebraic fractions</title>
			<link>http://www.revisesmart.co.uk/maths/core-4/solving-algebraic-fractions.html</link>
			<description>AS and A level maths revision of solving alebraic fractions in core 4. Looking at putting removing fractions and factorising.</description>
		  </item>
				  <item>
			<title>Vector geometry of planes</title>
			<link>http://www.revisesmart.co.uk/maths/core-4/vector-geometry-of-planes.html</link>
			<description>AS and A level maths revision of vectors - looking at the vector geometry of planes. Points of intersection of a line and a plane, the angles between planes and the distance between a point to a plane.</description>
		  </item>
				  <item>
			<title>Equation of a plane</title>
			<link>http://www.revisesmart.co.uk/maths/core-4/equation-of-a-plane.html</link>
			<description>AS and A level maths revision of vectors - looking at the equation of a plane</description>
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