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Grade 31 Statistics and Probability
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Regression and Correlation -Linear Regression and Confidence Bounds for Prediction
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Question: General form of the regression line used in statistics is ____ and the
y
′-intercept and the slope respectively are
A )
y
′ =
a + bx
,
a
,
b
B )
y
′ =
ax
2
+
b
,
b
,
a
C )
y
′ =
a + bx
2
,
a
,
b
D )
y
′ =
ax + b
,
b
,
a
Steps to derive
1
General form of the regression line used in statistics is
y
′ =
a + bx
.
2
The
y
′ - intercept is
a
.
3
The slope is
b
.
Hence the right answer is Option A
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