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(Correlation)

2

(x,y)

r

X Y
(Correlation)

2
r

(x,y)
(Correlation)

2

(x,y)

r

r
(Correlation)

2
r

(x,y)
(Correlation)
r

-1

0

1
(Regression Analysis)





(Y)

“

”
(Regression Analysis)

“

”

Y = a

+

bX

= 100,000
+
= 100,000 +
= 100,000 +
= 150,000

500 (
500 (100)
50,000

)
(Logistic Regression)





“

”

“

”
(Logistic Regression)

:
(Logistic Regression)

Prob (event)  < 0.5

Prob (event)  ≥ 0.5

: cutting score

Y=1

Y=0
x

x

✓

✓

/

✓
✓

✓

✓

✓

✓
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