Examlex
The following two SQL statements will produce different results.
Select last_name, first_name
from customer
where state = 'MA' or state = 'NY' or state = 'NJ' or state = 'NH' or state = 'CT';
Select last_name, first_name
from customer
where state in ('MA','NY','NJ','NH','CT');
Upward-Sloping Line
A graphical representation indicating a positive relationship between two variables, such that as one variable increases, so does the other.
Positive Correlation
A relationship between two variables where they both increase or decrease together.
Causal Relationship
A connection between two variables where a change in one directly results in a change in the other.
Negatively Correlated
A statistical term indicating that as one variable increases, the other decreases, showing an inverse relationship between two variables.
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