The Following X and Y Scores Produce SS? = 2 $$\begin{array} { l l } \mathrm { X } & \mathrm { Y } \\\hline 1 & 2 \\2 & 3 \\3 & 10\end{array}$$

question 47

Multiple Choice

The following X and Y scores produce SS? = 2 and SP = 8.What is regression equation for predicting Y? $$\begin{array} { l l } \mathrm { X } & \mathrm { Y } \\\hline 1 & 2 \\2 & 3 \\3 & 10\end{array}$$

• A)Y = 0.25X + 4.5
• B)Y = 0.25X - 4.5
• C)Y = 4X + 3
• D)Y = 4X - 3

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Definitions:

Population Average

The mean of all observations or values in a population.

Standard Error

A statistical measure that describes the accuracy with which a sample represents a population, specifically the variability of the sampling distribution.

Sample Mean

The average of a set of numerical values taken from a subset (sample) of a larger population.

Probability

A measure of the likelihood of a particular event's occurrence, ranging from 0 (impossible) to 1 (certain).