The Impurity of a Group of Observations Is Based on the Variance

question 17

Multiple Choice

The impurity of a group of observations is based on the variance of the outcome value for the observations in the group for

• A)regression trees.
• B)time-series plots.
• C)classification trees.
• D)cumulative lift charts.

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Definitions:

Gospel Music

A genre of Christian music that originated in the African American church in the early 20th century, characterized by its emotional and spiritual lyrics.

Thomas Dorsey

Often regarded as the "Father of Gospel Music," he was an American musician who combined Christian praise with the rhythms and styles of blues and jazz.

Precious Lord

A famous gospel hymn written by Thomas A. Dorsey, often associated with African American religious and cultural expressions.

Black Leftist

An individual or group part of the political left advocating for social justice, particularly concerning racial equality and rights for black communities.