Weekly Follow Up: Linear Regression and Correlation
Authored by Bryanna Smalls (student)
Mathematics
9th Grade
CCSS covered
Used 4+ times
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19 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 12 pts
Data is analyzed comparing hours studied and grades. It is determined that the correlation coefficient is 0.92. What does this mean?
There is a strong positive correlation between studying and grades.
There is a strong negative correlation between studying and grades.
There is a weak positive correlation between studying and grades.
There is a weak negative correlation between studying and grades.
Tags
CCSS.HSF.LE.B.5
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Data was collected on the weight of a male laboratory rat for the first 25 weeks after its birth. The linear regression equation is
y= 40x+100, where x is number of weeks and y is weight in grams.
What does the y-intercept mean in context of the problem?
Tags
CCSS.HSF.LE.B.5
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The linear regression equation is y = 61.93x - 1.79. Use the equation to predict how far this person will travel after 10 hours of driving.
Tags
CCSS.HSA.CED.A.2
CCSS.HSA.REI.B.3
CCSS.HSA.SSE.A.1
CCSS.HSS.ID.C.7
4.
MULTIPLE CHOICE QUESTION
5 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
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A plane ride costs $0.136 (13 cents)
For every 1 mile flown, the cost goes up $ 0.136 dollars (13 cents)
For every 1 mile flown, the cost goes up $74
Tags
CCSS.HSF.LE.B.5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of association does this graph show?
Tags
CCSS.HSF-LE.A.1B
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Is this line an accurate line estimate of best fit for the data?
Yes
No
Tags
CCSS.8.EE.B.5
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