Examlex
If the covariance between two variables is zero,then the two variables are statistically independent.
Secondary Group
A large and impersonal social group whose members pursue a specific goal or activity but typically have a detached and superficial relationship with one another.
Married Couple
Two individuals who are legally united in marriage, forming a partnership recognized by law and/or culture.
Shares His Birthday
The occurrence of two or more individuals having the same date of birth.
Social Category
A group of people who share a common characteristic or attribute but do not necessarily interact with each other.
Q24: A perfect straight line sloping downward would
Q50: It has been estimated that 53% of
Q52: If a sample of size 100 is
Q56: The time it takes to assemble an
Q105: If a plane has just left 40
Q107: There is a 50% chance that a
Q124: What proportion of respondents had at least
Q207: The sum of the probabilities of collectively
Q232: What is P(A<sub>2</sub> ∣ B<sub>2</sub>)?
Q257: If a plane has just left 40