STATS 121 Test 2

Values of one variable tend to occur with certain values of another variable; detected when the conditional distributions differ from the marginal distribution ann from each other

the design of a statistical study is biased if it systematically favors certain outcomes

Data collected on two variables for each individal in a study

When sampling from a non-Normal populaiton, the sampling distribution of x- is approximately Normal whenever the sample is large and random

the distribution of the vlaues in a single row (or a single column) of a two-way table.