Finding Linear Regression Equation
Authored by Monica Davis
Mathematics
9th Grade
CCSS covered
Used 16+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
A department store has several retail outlets across the state. Each store has a different number of employees, and consequently produces varying amounts of annual sales.
Which equation is the regression equation for this situation?
y = 20x
y = 21x
y = 21.4x - 10.1
y = 21.4x - 11.3
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
A restaurant sells pizza for the prices in the data table. Calculate the linear regression equation of the data.
Tags
CCSS.8.EE.C.8C
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
A person travels by car. They record their miles driven in a data table. Calculate the linear regression equation of this data.
Tags
CCSS.HSF-LE.A.1B
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What is the y-intercept in the following equation: y= -5 - 4x?
-4
-4x
5
-5
Tags
CCSS.8.F.A.3
CCSS.8.EE.B.6
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What is the slope in the following equation: y= 6 - 2/3x?
2/3
6
-6
-2/3
Tags
CCSS.8.F.A.3
CCSS.8.EE.B.6
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
The table shown is comparing a person's foot length to their height in cm. Calculate a line of best fit.
Tags
CCSS.8.F.A.3
CCSS.8.F.B.4
CCSS.8.SP.A.2
CCSS.8.SP.A.3
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
The chart below tracts starting salaries for health care workers since the year 2000. Using linear regression, find the equation of best fit. Round decimals to 3 places.
Tags
CCSS.HSF-LE.A.1B
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