Question: Explain with equation how gini impurity G i is calculated for the i t h node in a decision tree. Assume that for a given

Explain with equation how gini impurity

G_{i}

is calculated for the

i^{t h}

node in a decision tree. Assume that

for a given node

j,

there are

10

samples coming from four different classes with

2, 1, 3

and

4

training

instances respectively. Calculate the gini value for this node.

Explain with equation how gini impurity Gi is calculated for the

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