Mathematics - International - 0607 CIE

Scatter Diagrams

Muhtasari

A scatter diagram plots pairs of values to reveal whether two quantities are connected, and a line of best fit lets you make predictions. The international course adds the power of a graphic calculator to find the line of best fit precisely.

In this lesson you will draw and interpret scatter diagrams, describe correlation, draw and use a line of best fit, and (at Extended) use a graphic display calculator to find the equation of linear regression.

Malengo

Draw and interpret scatter diagrams.
Understand what is meant by positive, negative and zero correlation.
Draw by eye, interpret and use a straight line of best fit.
Use a graphic display calculator to find and use the equation of linear regression. (Extended only)

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Maelezo ya Somo

Scatter diagrams are the first step in looking for a relationship between two variables, used across science, economics and everyday data.

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Tathmini ya Somo

Hongera kwa kukamilisha somo la Scatter Diagrams. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.

Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.

Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.

As study time increases, scores increase. This is: A. positive correlation B. negative correlation C. zero correlation D. no data Answer: A
As one quantity increases the other decreases. This is: A. positive correlation B. negative correlation C. zero correlation D. perfect correlation Answer: B
A line of best fit should: A. join the dots B. pass through the origin C. be balanced through the points D. touch every point Answer: C
On a GDC, the exact equation of the best-fit line is found using: A. the table B. linear regression C. the graph zoom D. the solver Answer: B
No clear relationship between two variables is: A. positive B. negative C. zero correlation D. strong correlation Answer: C

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Vitabu Vinavyopendekezwa

Cambridge IGCSE Mathematics Core and Extended Coursebook

Manukuu: Second edition

Mchapishaji: Cambridge University Press

Mwaka: 2018

ISBN: 978-1-108-43718-9

Maelezo: Endorsed coursebook with full coverage of the 0580/0980 syllabus, worked examples and practice exercises.

Cambridge IGCSE Core and Extended Mathematics

Manukuu: Fifth edition

Mchapishaji: Hodder Education

Mwaka: 2023

ISBN: 978-1-398-37391-4

Maelezo: Endorsed textbook with worked examples and graded questions across Core and Extended content.

Jifunze zaidi kutoka vyanzo huria

Sehemu ya kitabu Fitting Linear Models to Data OpenStax · Algebra and Trigonometry
Draw and interpret scatter diagrams.

"Algebra and Trigonometry: Fitting Linear Models to Data" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/algebra-and-trigonometry/pages/4-3-fitting-linear-models-to-data. Access for free at https://openstax.org/books/algebra-and-trigonometry/pages/1-introduction
Sehemu ya kitabu Scatter Plots OpenStax · Introductory Statistics
Before we take up the discussion of linear regression and correlation, we need to examine a way to display the relation between two variables x and y . The most common and easiest way is a scatter plot . The following example illustrates a scatter plot. In Europe and Asia, m-commerce is popular. M-c

"Introductory Statistics: Scatter Plots" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/introductory-statistics/pages/12-2-scatter-plots. Access for free at https://openstax.org/books/introductory-statistics/pages/1-introduction

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Fanya Mazoezi ya Maswali ya Majaribio

Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Scatter Diagrams? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.

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