An Experiment Consists of Three Stages

question 87

Short Answer

An experiment consists of three stages. There are two possible outcomes in the first stage, three possible outcomes in the second stage, and four possible outcomes in the third stage. Drawing a tree diagram for this experiment will show that the total number of outcomes is: $\begin{array}{|l|l|}\hline \text { A. } & 9 . \\\hline \text { B. } & 24 . \\\hline \text { C. } & 26 . \\\hline \text { D. } & 18 . \\\hline\end{array}$

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Definitions:

Independent Variable

In an experiment, it is the variable that is manipulated or changed to observe its effects on the dependent variable.

Residual Analysis

The analysis of the residuals used to determine whether the assumptions made about the regression model appear to be valid. Residual analysis is also used to identify outliers and influential observations.

Regression Model

A statistical technique used to estimate the relationship between a dependent variable and one or more independent variables.

SST

A measure of the total variation in a dataset that is the sum of squares total, often used in the context of regression analysis.