Warm Up Please sit down and clear your desk. Do not talk. You will have until lunch to finish your quiz.

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Presentation transcript:

Warm Up Please sit down and clear your desk. Do not talk. You will have until lunch to finish your quiz.

Intro to Linear Regression

Scatter Plots A scatter plot is used to show the relationship between two variables. Ice Cream Sales vs. Temperature

Let’s make one! number of siblings your age

Making a Scatter Plot in the Calculator STAT  Edit… Enter the data in L1 and L2 2nd  STAT PLOT Turn the Plot on ZOOM  9: ZoomStat Write these steps down so you can use them later!

Create a scatterplot for the following data: Square Feet (x) 1400 1600 1700 1875 1100 1550 2350 2450 1425 House Price in $1000s (y) 245 312 279 308 199 219 405 324 319 255

Let’s find an equation for a line that best fits the data. STAT  CALC 4: LinReg (ax + b)

Use the equation to predict the cost of the house that is 4000 square feet.