Given the following attribute "Chest Pain"

$(1)$ What is the Gini$$impurity for the leaf node on the left Question Blank $1$ of $3?$

$(2)$ What is the Gini impurity for the left node on the right Question Blank $2$ of $3?$

$(3)$ What is the weighted average of Gini$$impurities for the leaf nodes Question Blank $3$ of $3?$

Please round your answer to the nearest thousandth $(3$ decimal places$)$