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ITS-632 Intro to Data Mining
Dr. Patrick Haney
Dept. of Information Technology &
School of Computer and Information Sciences
University of the Cumberland’s
Chapter 4 Assignment
[
Decision Tree Assignment
Earned Value when playing again = (0.02 * 100,000) + (0.2 * 500) + (.78 * -2000)
= 2000 + 100 1560 = 540
Earned Value when playing for the second time = (0.001 * 1000000) + (0.75 * 540) + (.249 * -
1000) = 1000 + 405 249 = 1156.
a. Yes, you should play the game. The net monetary value of playing the game is 1156
dollars.
b. Yes, you should try again the second time. This is because the net earned value when
playing again is 540 dollars.
c. Decision diagram drawn above. Expected Net monetary value is shown on every node of
the decision tree.
-1560
-249
1000
Play Again (540)
First Play (1156)
78% (-1560)
20% (100)
2% (2000)
0.1%
24.9%
75%
Play
Don’t Play
1,000,000
500
- 2,000
-1,000
0
100,000
0

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ITS-632 Intro to Data Mining Dr. Patrick Haney Dept. of Information Technology & School of Computer and Information Sciences University of the Cumberland’s Chapter 4 Assignment [ Decision Tree Assignment 1000 1,000,000 100,000 0.1% 2% (2000) Play Again (540) First Play (1156) (100) 500 75% ...
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