Question 1

……………….. is a relationship between two variables in which both variables move in the same direction?
A)positive correlation
B)non-linear correlation
C)negative correlation
D)zero correlation

Accepted Answer

A positive correlation is when two variables move in the same direction, meaning as one variable increases, the other also increases, or as one decreases, the other also decreases.

Question 2

Which of the following statement is incorrect regarding good classification?
A)it should be unambiguous
B)it should be exhaustive and mutually exclusive
C)it should be suitable for the purpose
D)it should be rigid and inflexible

Accepted Answer

Good classification should be flexible, not rigid and inflexible, to accommodate changes and new developments.

Quiz 2: Statistics and Data Analysis

……………….. is a relationship between two variables in which both variables move in the same direction?

Which of the following statement is incorrect regarding good classification?