The Key Evidence in the Determination of President Richard Nixon's

question 43

Multiple Choice

The key evidence in the determination of President Richard Nixon's guilt or innocence in the Watergate scandal was

• A) audio tape recordings made of most conversations in the Oval Office.
• B) eyewitness testimony from Nixon confidants in the White House.
• C) phone records kept by Nixon's personal secretary.
• D) Nixon's personal diaries.
• E) journals kept by Secretary of State Henry Kissinger.

---

Definitions:

Regression

A statistical method used to examine the relationship between one dependent variable and one or more independent variables.

Intercept Term

In statistics, the intercept term is a constant value that represents where the estimated regression line crosses the y-axis.

Stepwise Regression

An approach to constructing regression models where the selection of predictor variables is performed through an automated process.

Forward Selection

A stepwise regression approach where variables are sequentially added to an empty model based on their statistical significance in predicting the outcome.