Maths Topics to Improve on (flashcards) 0.0 / 5 ? MathematicsStatisticsInternational BaccalaureateNone Created by: ambermason0608Created on: 29-06-18 13:13 What is ND used for? It is used to model continuous random variables 1 of 9 What do you need to work out for the ND? Standard Deviation and Mean 2 of 9 What is Inverse Normal Distribution? It gives the value on the x-axis corresponding to the given probability of being below that X value 3 of 9 What is the pearsons product-moment correlation coefficient? It is a measure of the linear correlation between two variables. 4 of 9 What value does a correlation coefficient take? Any value between +1 and -1 5 of 9 What does a value of r close to -1 represent? A strong negative correlation 6 of 9 What does a value of r close to +1 represent? Strong positive correlation 7 of 9 What is a regression line It is a line of best fit 8 of 9 How do you calculate the midpoint? Add the two x coordinates together and half that, the do the same for the y coordinates 9 of 9
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