ISYE6644 MIDTERM 1 EXAM PREP
2025/2026 ACCURATE QUESTIONS
WITH CORRECT DETAILED ANSWERS
|| 100% GUARANTEED PASS
<BRAND NEW VERSION>
1. What are some characteristics of simulation models? - ANSWER
✓ 1. Discrete (vs. continuous)
Stochastic (vs. deterministic)
Dynamic (vs. static)
2. What is simulation? - ANSWER ✓ Simulation is the imitation of a
real-world process of system over time.
3. Simulation involves the generation of an artificial history to draw
inferences concerning the operating characteristics of the real
system that is represented.
4. What is simulation good for? - ANSWER ✓ 1. Describe / analyze
real or conceptual system behavior.
2. Ask "what if" questions.
3. Aid in system design and optimization
4. Can simulate almost anything
5. Why might simulation be a good tool to analyze supply chains?
(More than one answer below may be correct.)
, A) Supply chains are always deterministic systems.
B) Supply chains often have complicated network structures,
making exact analysis difficult.
C) Supply chains are stochastic systems, with random travel
times, lead times, and order patterns.
D) Supply chain simulations can be programmed in a matter of
minutes. - ANSWER ✓ B) Supply chains often have
complicated network structures, making exact analysis
difficult.
C) Supply chains are stochastic systems, with random travel times,
lead times, and order patterns.
6. Suppose there are 40 random people in a room. What is the
probability that at least two of them will have the same birthday?
A) Close to 0
B) A bit less than 1/2
C) Almost exactly 1/2
D) Somewhat greater than 1/2 - ANSWER ✓ D) Somewhat
greater than 1/2
In fact, you only need 23 people in the room to achieve a
probability of 1/2.
7. Inscribe a circle in a unit square and toss 1000 random darts at the
square. Suppose that 800 of those darts land in the circle. Using the
technology developed in this lesson, what is the resulting estimate
for 𝜋
A) -3.2
B) 2.8
C) 3.0
D) 3.2
, E) 4.0 - ANSWER ✓ D) 3.2
8. Since the estimate 𝜋̂ = 4 x (proportion in circle). Note that (a) is
the University of Georgia answer, and is completely incorrect.
9. What is a characteristic of a bad random number generator? -
ANSWER ✓ It must generate a random number distribution for
every seed imaginable.
10. What is a random walk simulation? - ANSWER ✓ Take a
normal step up or down every time unit and plot where you are as
time progresses.
This "random walk" converges to Brownian motion
Einstein and Black+Scholes won nobel Prizes for this research.
11. TRUE or FALSE? All random number generators perform
pretty much the same. - ANSWER ✓ False
12. Suppose customers to a barber shop show up at times 4 and
11. Moreover, suppose that it takes the barber 12 minutes to serve
customer 1 and then 14 minutes to serve customer 2. When does
customer 2 leave the barber?
A) 18
B) 25
C) 30
D) 40 - ANSWER ✓ C) 30 - Since customer 2's service starts
only when customer 1 leaves, which happens at time 4 + 12
= 16.
13. Random samples from which distribution can be transformed
into random variables of any other distribution (M1L8)? -
ANSWER ✓ Uniform (0, 1)
2025/2026 ACCURATE QUESTIONS
WITH CORRECT DETAILED ANSWERS
|| 100% GUARANTEED PASS
<BRAND NEW VERSION>
1. What are some characteristics of simulation models? - ANSWER
✓ 1. Discrete (vs. continuous)
Stochastic (vs. deterministic)
Dynamic (vs. static)
2. What is simulation? - ANSWER ✓ Simulation is the imitation of a
real-world process of system over time.
3. Simulation involves the generation of an artificial history to draw
inferences concerning the operating characteristics of the real
system that is represented.
4. What is simulation good for? - ANSWER ✓ 1. Describe / analyze
real or conceptual system behavior.
2. Ask "what if" questions.
3. Aid in system design and optimization
4. Can simulate almost anything
5. Why might simulation be a good tool to analyze supply chains?
(More than one answer below may be correct.)
, A) Supply chains are always deterministic systems.
B) Supply chains often have complicated network structures,
making exact analysis difficult.
C) Supply chains are stochastic systems, with random travel
times, lead times, and order patterns.
D) Supply chain simulations can be programmed in a matter of
minutes. - ANSWER ✓ B) Supply chains often have
complicated network structures, making exact analysis
difficult.
C) Supply chains are stochastic systems, with random travel times,
lead times, and order patterns.
6. Suppose there are 40 random people in a room. What is the
probability that at least two of them will have the same birthday?
A) Close to 0
B) A bit less than 1/2
C) Almost exactly 1/2
D) Somewhat greater than 1/2 - ANSWER ✓ D) Somewhat
greater than 1/2
In fact, you only need 23 people in the room to achieve a
probability of 1/2.
7. Inscribe a circle in a unit square and toss 1000 random darts at the
square. Suppose that 800 of those darts land in the circle. Using the
technology developed in this lesson, what is the resulting estimate
for 𝜋
A) -3.2
B) 2.8
C) 3.0
D) 3.2
, E) 4.0 - ANSWER ✓ D) 3.2
8. Since the estimate 𝜋̂ = 4 x (proportion in circle). Note that (a) is
the University of Georgia answer, and is completely incorrect.
9. What is a characteristic of a bad random number generator? -
ANSWER ✓ It must generate a random number distribution for
every seed imaginable.
10. What is a random walk simulation? - ANSWER ✓ Take a
normal step up or down every time unit and plot where you are as
time progresses.
This "random walk" converges to Brownian motion
Einstein and Black+Scholes won nobel Prizes for this research.
11. TRUE or FALSE? All random number generators perform
pretty much the same. - ANSWER ✓ False
12. Suppose customers to a barber shop show up at times 4 and
11. Moreover, suppose that it takes the barber 12 minutes to serve
customer 1 and then 14 minutes to serve customer 2. When does
customer 2 leave the barber?
A) 18
B) 25
C) 30
D) 40 - ANSWER ✓ C) 30 - Since customer 2's service starts
only when customer 1 leaves, which happens at time 4 + 12
= 16.
13. Random samples from which distribution can be transformed
into random variables of any other distribution (M1L8)? -
ANSWER ✓ Uniform (0, 1)
