
correlation coefficient r
Authored by Akiko Uriu
Mathematics
8th - 11th Grade
16 Questions

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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The value of the coefficient of correlation r lies between:
0 and 1
-1 and 0
-1 and +1
-0.5 and +0.5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Correlation coefficients of -0.90 and +0.90 have equal strength
True
False
3.
MULTIPLE SELECT QUESTION
30 sec • 5 pts
For an estimate to be reliable, .......
(choose all that apply)
it is an extrapolation
it is an interpolation
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
. ________measures the strength of the linear relationship between the dependent and the independent variable.
Correlation Coeeficient
Distance value
Y Intercept
Residual
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
True
False
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
strong positive
strong negative
weak positive
weak negative
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Estimate the correlation coefficient for this scatterplot.
r = 0.9
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