Page 1 of 28
ISYE 6644 2026 MIDTERM AND FINAL EXAM
COMPLETE 134 CURRENT TESTING
QUESTIONS AND DETAILED CORRECT
ANSWERS (VERIFIED) TOP-RATED A+.
ISYE 6644
Let H and W denote a person's height and weight. Which of
the following best describes the joint distribution of (H,W)?
✓ ✓...... ANSWER ....... Bivariate normal distribution
with positive correlation coefficient.
The multivariate normal distribution's covariance matrix
sigma can be decomposed into the form sigma = CC^T.
What does the C informally stand for? ✓ ✓...... ANSWER
....... Cholesky
TRUE or FALSE? The time between Poisson(lambda) arrivals
are i.i.d. Exp(lambda). ✓ ✓...... ANSWER ....... True. As
long as lambda doesn't change over time.
TRUE or FALSE? The times between nonhomogeneous
Poisson(lambda) arrivals are i.i.d. Exp(lambda)? ✓ ✓......
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ANSWER ....... False. They are independent but the
distribution changes as the arrival rate changes over time.
What is the recommended method to generate
nonhomogeneous Poisson arrivals? ✓ ✓...... ANSWER .......
Thinning
Brownian motion is also known as... ✓ ✓...... ANSWER
....... Wiener process
Let W(t) denote a Brownian motion process at time t. What is
Cov(W(2),W(3))? ✓ ✓...... ANSWER ....... 2.
Cov(W(s),W(t)) = min(s,t)
TRUE or FALSE? (Almost) every simulation language utilizes
a future events list to process events in order by time. ✓
✓...... ANSWER ....... True
TRUE or FALSE? In Arena, variables are global. ✓ ✓......
ANSWER ....... True
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In Arena, you can use the SEIZE-DELAY-RELEASE module
series instead of a single PROCESS module. ✓ ✓......
ANSWER ....... True
TRUE or FALSE? In Arena, you can find a SEIZE (i) inside a
PROCESS module, (ii) in the Advanced Process template, (iii)
in the Primitive Blocks template. ✓ ✓...... ANSWER .......
True
In Arena, what kind of module would you use to give a new
value to an attribute? ✓ ✓...... ANSWER ....... ASSIGN
TRUE or FALSE? In Arena, certain resources can be in more
than one resource set. ✓ ✓...... ANSWER ....... True
TRUE or FALSE? An Arena DECIDE module can route
customers probabilistically or conditionally to multiple
locations? ✓ ✓...... ANSWER ....... True
In Arena, where would you find the Expression spreadsheet?
✓ ✓...... ANSWER ....... Advanced Process
ISYE 6644 2026 MIDTERM AND FINAL EXAM
COMPLETE 134 CURRENT TESTING
QUESTIONS AND DETAILED CORRECT
ANSWERS (VERIFIED) TOP-RATED A+.
ISYE 6644
Let H and W denote a person's height and weight. Which of
the following best describes the joint distribution of (H,W)?
✓ ✓...... ANSWER ....... Bivariate normal distribution
with positive correlation coefficient.
The multivariate normal distribution's covariance matrix
sigma can be decomposed into the form sigma = CC^T.
What does the C informally stand for? ✓ ✓...... ANSWER
....... Cholesky
TRUE or FALSE? The time between Poisson(lambda) arrivals
are i.i.d. Exp(lambda). ✓ ✓...... ANSWER ....... True. As
long as lambda doesn't change over time.
TRUE or FALSE? The times between nonhomogeneous
Poisson(lambda) arrivals are i.i.d. Exp(lambda)? ✓ ✓......
, Page 2 of 28
ANSWER ....... False. They are independent but the
distribution changes as the arrival rate changes over time.
What is the recommended method to generate
nonhomogeneous Poisson arrivals? ✓ ✓...... ANSWER .......
Thinning
Brownian motion is also known as... ✓ ✓...... ANSWER
....... Wiener process
Let W(t) denote a Brownian motion process at time t. What is
Cov(W(2),W(3))? ✓ ✓...... ANSWER ....... 2.
Cov(W(s),W(t)) = min(s,t)
TRUE or FALSE? (Almost) every simulation language utilizes
a future events list to process events in order by time. ✓
✓...... ANSWER ....... True
TRUE or FALSE? In Arena, variables are global. ✓ ✓......
ANSWER ....... True
, Page 3 of 28
In Arena, you can use the SEIZE-DELAY-RELEASE module
series instead of a single PROCESS module. ✓ ✓......
ANSWER ....... True
TRUE or FALSE? In Arena, you can find a SEIZE (i) inside a
PROCESS module, (ii) in the Advanced Process template, (iii)
in the Primitive Blocks template. ✓ ✓...... ANSWER .......
True
In Arena, what kind of module would you use to give a new
value to an attribute? ✓ ✓...... ANSWER ....... ASSIGN
TRUE or FALSE? In Arena, certain resources can be in more
than one resource set. ✓ ✓...... ANSWER ....... True
TRUE or FALSE? An Arena DECIDE module can route
customers probabilistically or conditionally to multiple
locations? ✓ ✓...... ANSWER ....... True
In Arena, where would you find the Expression spreadsheet?
✓ ✓...... ANSWER ....... Advanced Process
