Podcast
Questions and Answers
Which of the following is a commonly used convention in probability theory for representing random variables?
Which of the following is a commonly used convention in probability theory for representing random variables?
- Random variables are written in upper case Greek letters.
- Random variables are written in upper case roman letters. (correct)
- Random variables are written in lower case roman letters.
- Random variables are written in lower case Greek letters.
Which of the following notations is used to represent a particular realization of a random variable?
Which of the following notations is used to represent a particular realization of a random variable?
- Upper case Greek letters
- Upper case roman letters
- Lower case Greek letters
- Lower case roman letters (correct)
How is a cumulative probability formally written to differentiate the random variable from its realization?
How is a cumulative probability formally written to differentiate the random variable from its realization?
- P(X = x)
- P(X ≤ x) (correct)
- P(X > x)
- P(X ≥ x)
What notation is sometimes used to represent probability in order to distinguish it from other functions and measures?
What notation is sometimes used to represent probability in order to distinguish it from other functions and measures?
What does the notation P(X ∈ A) represent?
What does the notation P(X ∈ A) represent?
Which of the following statements about the coefficient of multiple correlation is true?
Which of the following statements about the coefficient of multiple correlation is true?
What does a coefficient of multiple correlation value of 0 indicate?
What does a coefficient of multiple correlation value of 0 indicate?
What is the relationship between the coefficient of multiple correlation and the coefficient of determination?
What is the relationship between the coefficient of multiple correlation and the coefficient of determination?
What does a coefficient of multiple correlation value of 1 indicate?
What does a coefficient of multiple correlation value of 1 indicate?
What is the range of values for the coefficient of multiple correlation?
What is the range of values for the coefficient of multiple correlation?
