UGBA 104 - EXAM 1 (ACTUAL 2025) QUESTIONS
AND ANSWERS
Discrete Random Variable X
takes on finite (infinitely countable) number of values
How are Discrete Random Variables represented?
probability mass function, p(x)
Continuous Random Variable X
takes on infinite number of values
How are Continuous Random Variables represented?
probability density function
Types of Discrete Random Variables
(1) integer uniform
(2) custom discrete
(3) bernoulli
(4) binomial
, UGBA 104 - EXAM 1 (ACTUAL 2025) QUESTIONS
AND ANSWERS
Integer Uniform RV
each value in a range of integers is equally likely to occur
Integer Uniform RV - Parameters
minimum, maximum (lower, upper bound)
Integer Uniform RV - Mean
(lower + upper)/2
Custom Discrete RV
customized set of variables and corresponding probabilities
Custom Discrete RV - Parameters
(1) set of values
(2) set of corresponding probabilities
AND ANSWERS
Discrete Random Variable X
takes on finite (infinitely countable) number of values
How are Discrete Random Variables represented?
probability mass function, p(x)
Continuous Random Variable X
takes on infinite number of values
How are Continuous Random Variables represented?
probability density function
Types of Discrete Random Variables
(1) integer uniform
(2) custom discrete
(3) bernoulli
(4) binomial
, UGBA 104 - EXAM 1 (ACTUAL 2025) QUESTIONS
AND ANSWERS
Integer Uniform RV
each value in a range of integers is equally likely to occur
Integer Uniform RV - Parameters
minimum, maximum (lower, upper bound)
Integer Uniform RV - Mean
(lower + upper)/2
Custom Discrete RV
customized set of variables and corresponding probabilities
Custom Discrete RV - Parameters
(1) set of values
(2) set of corresponding probabilities
