Please explain Index X1 X2 X3 Target 1 1 1 1 1 2 1 1 0 1 3 1 0 1 0 4 1 0 0 0 5 0 1 1 0   Given the above data set. The “expected entropy” of X2 variable is Note: The “expect entropy” refers to the weighted entropy of the subsets of the target When it is split on X2. Select options: 97 65 55 45

A First Course in Probability (10th Edition)
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Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Please explain

Index

X1

X2

X3

Target

1

1

1

1

1

2

1

1

0

1

3

1

0

1

0

4

1

0

0

0

5

0

1

1

0

 

Given the above data set. The “expected entropy” of X2 variable is

Note: The “expect entropy” refers to the weighted entropy of the subsets of the target

When it is split on X2.

Select options:

  1. 97
  2. 65
  3. 55
  4. 45
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