The normality assumption states that the population of X and Y scores form a bivariate ("two variable")normal distribution,such that ______.
A) the population of X and Y scores are normally distributed
B) for each X score, the distribution of Y scores is normally distributed
C) for each Y score, the distribution of X scores is normally distributed
D) all of these

Question

Quizplus · Accepted Answer

The normality assumption states that both the population of X scores and the population of Y scores are normally distributed. It also implies that for each value of X, the distribution of Y scores is normal and that for each value of Y, the distribution of X scores is normal. Therefore, the correct option is D, which includes all of these conditions.

The Normality Assumption States That the Population of X and Y