Linear and Quadratic Regression Using Desmos

Quiz
•
Mathematics
•
9th Grade
•
Hard
Standards-aligned
Barbara White
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After running a linear regression in desmos, this is what pops up. What is the slope?
1
0.039
-0.171
Tags
CCSS.HSF.LE.B.5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After running a linear regression in desmos, this is what pops up. What is the correlation coefficient?
1
0.039
-0.179
0.9846
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Estimate the correlation coefficient for this scatterplot.
A) r = 1.2
B) r = 0.89
C)r = 0
D) r = -0.89
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Describe the correlation:
r = -0.98
Strong positive
Weak positive
Strong negative
Weak negative
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Tags
CCSS.8.EE.C.8C
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Tags
CCSS.HSF.LE.B.5
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
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
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After running a regression and plotting the residuals in desmos, this pops up. Which ordered pair is the furthest from the line of best fit?
(1 , .20)
(3, .187)
(5, .33)
(7, .35)
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