WebThe scatter graph shows the maths mark and the art mark for each of 15 students. (a) What type of correlation does this scatter graph show? (1) ..... (b) Draw a line of best fit on the scatter graph. (1) Sarah has not got a maths mark. Her art mark is 23 (c) Use your line of best fit to estimate a maths mark for Sarah. (1) WebScatter Diagrams. (Used for Tiffin Year 8 scheme of work) (a) Draw and interpret scatter diagrams. (b) Identify correlation (e.g. "strong negative") (c) Draw a line of best fit and use to predict values. (d) Predict correlation (including strength) from real-life examples when data not given (e.g. house price with distance from London).

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WebThe line of best fit is the best possible straight line that fits the data on a scatter plot, a two-dimensional graph of y versus x. Because linear relationships are so common, it … WebA line of best fit has been drawn. (a) Find the equation of the line of best fit in terms of Q and P. Give the equation in its simplest form. (b) Use your answer to (a) to estimate the value of Q when P = 4. (c) Use your … like and contains in sql

Cumulative Frequency Practice Questions – Corbettmaths

WebCalculate the gradient of the line: Select two points on the line that occur on the corners of two grid squares. 2 Sketch a right angle triangle and calculate the change in yy and the change in xx. 3 Divide the change in yy by the change in xx to find mm. Here, 4 … WebWe often use a 'best-fitting' line to show any relationship A line of best fit is drawn on the scatter diagram. It is drawn so that the points are evenly distributed on either side of the … WebOct 6, 2024 · The equation of the line of best fit is y = ax + b. The slope is a = .458 and the y-intercept is b = 1.52. Substituting a = 0.458 and b = 1.52 into the equation y = ax + b … like and follow culture