Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To understand how to approach.

Slides:

Advertisements

Similar presentations

5.4 Correlation and Best-Fitting Lines

Advertisements

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To show the solutions to.

I can plot coordinates. Given the equation of a straight line, I can complete a table of values. From a table of values, I can draw a straight line. Given.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To remind you how bearings.

Scatter Diagrams Isabel Smith. Why do we use scatter diagrams?  We use scatter diagrams to see whether two sets of data are linked, e.g. height and shoe.

Two Variable Analysis Joshua, Alvin, Nicholas, Abigail & Kendall.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To understand how to convert.

2.4 Trends, Interpolation and Extrapolation. Line of Best Fit a line that approximates a trend for the data in a scatter plot shows pattern and direction.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To demonstrate how to simplify.

Scatter Graphs Teach GCSE Maths x x x x x x x x x x Weight and Length of Broad Beans Length (cm) 3 1·5 Weight (g) 0·5 1.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. Objectives To understand.

CHAPTER 38 Scatter Graphs. Correlation To see if there is a relationship between two sets of data we plot a SCATTER GRAPH. If there is some sort of relationship.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To understand another method.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To work through some examples.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To understand how you can.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To understand how to answer.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To understand how to approach.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. Hints and tips for dealing.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To learn how to deal with.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To understand how to use.

Scatter Plots and Trend Lines

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To demonstrate how to solve.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To understand what we mean.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To find the solutions to.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To find a solution for.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To remind how to round.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To understand how to divide.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To understand how to answer.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To work through a question.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To know how to tell that.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To understand how to construct.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To understand an easy way.

Whiteboardmaths.com © 2004 All rights reserved

The Least Squares Regression Line. The problem with drawing line of best fit by eye is that the line drawn will vary from person to person. Instead, use.

Scatter Diagrams By Emily Sewell. Both these diagrams have positive correlation but the closer the points are the stronger the correlation is.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To show the solutions to.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To learn a useful way of.

Lesson 6-7 Scatter Plots and Lines of Best Fit. Scatter Plots A scatter plot is a graph that relates two different sets of data by plotting the data as.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To understand how to approach.

Devising a Measure: CorrelationProjector resources Devising a Measure: Correlation Projector Resources.

Happy Tuesday Scientists!

Scatter Plots and Correlation Coefficients

GCSE: Scatter Diagrams

Lesson 4.5 Topic/ Objective: To use residuals to determine how well lines of fit model data. To use linear regression to find lines of best fit. To distinguish.

Day 4 – Slop-Intercept Form

Targeting Grade C GCSE Mathematics Handling Data

Lines of Best Fit When data show a correlation, you can estimate and draw a line of best fit that approximates a trend for a set of data and use it to.

To understand how to approach a question about stem and leaf diagrams.

Objectives To understand how to use proportion to find which item is better value. Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education.

Math 8C Unit 3 – Statistics

5-7 Scatter Plots and Trend Lines

14/11/2018 CORRELATION.

2.5 Correlation and Best-Fitting Lines

2.6 Draw Scatter Plots and Best-Fitting Lines

Statistics videos Activity 4. Statistics videos Activity 4.

Scatter Diagrams Objectives: D Grade Draw a line of best fit

Line of Best Fit.

3 4 Chapter Describing the Relation between Two Variables

Learning Objectives You should be able to: Vocabulary

Find the line of best fit.

Day 39 Making predictions

Scatter Graphs Objective

Scatter Graphs Scatter graphs are used to show whether there is a relationship between two sets of data. The relationship between the data can be described.

Scatterplots line of best fit trend line interpolation extrapolation

Scatter Graphs.

Scatter Graphs – Foundation – GCSE Questions

Scatter Graphs – Higher – GCSE Questions

The table shows the age and value of a car. Age of Car (Years) Value of Car (£s) Complete the pair of axes.

Presentation transcript:

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To understand how to approach a question about scatter diagrams. Objectives

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. John is interested in finding out how sales at his ice cream van are related to the temperature outside. He records the takings in pounds and the temperature on several random summer days. The results are show in the scatter diagram below. Takings (£) Temperature (°C) a.Describe the correlation shown in the diagram. b.Draw a line of best fit. c.Estimate sales on a day when the temperature is 26.5°C. d.Give two reasons why should John not use the graph to estimate sales on a day when the temperature is 6°C.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. Takings (£) Temperature (°C) a.Describe the correlation shown in the diagram. The takings rise as the temperature does, so the correlation is strong and positive.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. Takings (£) Temperature (°C) b.Draw a line of best fit. Don’t continue the line beyond the points drawn. Try to place the line as close to as many points as possible.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. Takings (£) Temperature (°C) c.Estimate sales on a day when the temperature is 26.5°C. Find 26.5°C on the temperature axis and draw these lines. Roughly £560

Takings (£) Temperature (°C) d.Give two reasons why should John not use the graph to estimate sales on a day when the temperature is 6°C; 6°C is outside the range of the data. The pattern may change so we can’t use the diagram to make the estimate. Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original.

Takings (£) Temperature (°C) Also, 6°C is not likely to be a temperature recorded in the summer, so we can’t use summer data to make an estimate. d.Give two reasons why should John not use the graph to estimate sales on a day when the temperature is 6°C; Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original.

Always use a sharp pencil to draw lines on your diagrams. Summary Always show lines when making estimates using the graph. Never extend the line beyond the range of data that you have. Never make estimates beyond the range of the data in the diagram. Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original.