Learning Objective: We will construct and interpret scatterplots (G8M6L4)
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1 Learning Objective: We will construct and interpret scatterplots (G8ML) Concept Development: A Scatter Plot is a graph of numerical data on two variables. Eamples: -- The number of hours ou stud for a test and the number of tet messages ou receive in a week. --The number of pounds a person weighs and how fast the can run a mile. Reading Score 7 Shoe Size 8 9 Patterns in scatter plots If ou can see the value in one variable tend to var in a predictable wa as the values of the other variable change, there is a statistical relationship. Linear Relationship Non Linear Relationship... Weight (kg) Age (ears) Chest Girth (cm) 7. 7 Shell Length (mm) Positive trend in the data Negative trend in the data G8ML: Scatter Plots and Patterns in Scatter Plots
2 Guided Practice: Steps for Constructing and Analzing Scatter Plots. Read the data in the table and decide on a scale for the -ais and -ais.. Graph each point on the coordinate plane.. Make conclusions about the data based on visual observations. Graph the data points for the observations. Do ou notice a pattern? The table below consists of data collected on different car models b Toota in. Model Weight (pounds) Fuel Efficienc (MPG),, 8, 9,,7, 7, 9 8, 9,,,,,8 Fuel Efficienc (mpg) Weight (pounds) G8ML: Scatter Plots and Patterns in Scatter Plots
3 Is there a relationship between the price and qualit of athletic shoes? The data below are from the Consumer Reports website.! =price in dollars and! =consumer report qualit rating. Shoe Price (dollars) Qualit Rating = Qualit Rating 7 8 = Price (dollars) 9 Do ou see a pattern in the scatter plot that would indicate a Some people think that the higher priced the shoes are, the better qualit the must be. What would ou sa to them? G8ML: Scatter Plots and Patterns in Scatter Plots
4 Below is a scatterplot that shows data collected on shoe size and scores on a reading test. Reading Score 7 Shoe Size 8 9 Describe the relationship. Is it reasonable to conclude that having bigger feet CAUSES higher reading scores? Can ou think of another eplanation for wh ou might see a pattern like this? G8ML: Scatter Plots and Patterns in Scatter Plots
5 Below is data on weight () and fuel efficienc () for cars. Below is a scatter plot of data on shell length () and age () for 7 lobsters... Fuel Efficienc (mpg) Age (ears) Weight (pounds). 7 Shell Length (mm) If the relationship appears to be linear, is it a positive or negative linear If the relationship appears to be linear, is it a positive or negative linear Below is a scatter plot of data on price () and qualit rating () for bike helmets. Below is a scatter plot from crocodiles on bod mass () and bite force (). Qualit Rating 7 Bite force (pounds) 8 8 Price (dollars) Bod mass (pounds) If the relationship appears to be linear, is it a positive or negative linear If the relationship appears to be linear, is it a positive or negative linear G8ML: Scatter Plots and Patterns in Scatter Plots
6 The scatter plot below was constructed using data size in square feet () and price in dollars ().,,,, Price (dollars) 8,,,, Size (square feet) Is there a pattern? Are there noticeable clusters or outliers? The scatter plot below was constructed using data on length in inches () and weight in pounds (). 7 Weight (pounds) Length (inches) Is there a pattern? Are there an noticeable clusters of outliers? G8ML: Scatter Plots and Patterns in Scatter Plots
7 Independent Practice: Problem Set from lesson 7 Activating Prior Knowledge: NO APK Closure: Describe the relationships for each of the scatter plots below: Teacher Notes: Module Lesson and 7? Homework is Khan Academ Interpreting scatter plots and Khan constructing scatter plots. 7 G8ML: Scatter Plots and Patterns in Scatter Plots
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