Zhipeng Liao
Department of Economics
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2.8
Overall Rating
Based on 26 Users
Easiness 2.5 / 5 How easy the class is, 1 being extremely difficult and 5 being easy peasy.
Clarity 2.7 / 5 How clear the class is, 1 being extremely unclear and 5 being very clear.
Workload 3.2 / 5 How much workload the class is, 1 being extremely heavy and 5 being extremely light.
Helpfulness 3.2 / 5 How helpful the class is, 1 being not helpful at all and 5 being extremely helpful.

TOP TAGS

There are no relevant tags for this professor yet.

GRADE DISTRIBUTIONS
14.7%
12.3%
9.8%
7.4%
4.9%
2.5%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

12.8%
10.6%
8.5%
6.4%
4.3%
2.1%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

14.2%
11.8%
9.4%
7.1%
4.7%
2.4%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

14.4%
12.0%
9.6%
7.2%
4.8%
2.4%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

12.5%
10.4%
8.3%
6.3%
4.2%
2.1%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

14.0%
11.7%
9.3%
7.0%
4.7%
2.3%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

14.3%
11.9%
9.5%
7.1%
4.8%
2.4%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

12.2%
10.1%
8.1%
6.1%
4.1%
2.0%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

12.0%
10.0%
8.0%
6.0%
4.0%
2.0%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

ENROLLMENT DISTRIBUTIONS
Clear marks

Sorry, no enrollment data is available.

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Reviews (18)

1 of 2
1 of 2
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Quarter: Winter 2023
Grade: D+
April 30, 2023

Professor read off slides that were so hard to understand because he didn't explain the notations unless you ask him. I could've put more effort into this class but I was juggling two mgmt classes at the same time so my grade suffered. if you're not a mathy person this might be hard for you. I found econ 11 to be easier but that's also cuz I had a great professor too. shoutout to surro :p

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Quarter: N/A
Grade: N/A
April 10, 2015

Liao was actually a surprisingly good professor. The quarter I had to take Econ 41 I didn't have the option to go with Rojas that I wanted, so I was nervous about taking Liao since he had no reviews and I heard his accent is pretty tough.

Nevertheless, the class is incredibly straightforward. All lecture notes are posted online and he merely goes into them in more detail in class which is very helpful since you can study things you may not have understood in class at home and clarify things in his online notes during lecture. The midterm was very easy and covered only up to basic probability concepts such as independence and conditional probabilities. It's made super easy and I, like a lot of people, was able to get 100 on it. He also provides a significant time gap between the midterm and the last content covered on it. So you have a good 2 weeks to study for the midterm which was very generous.

Our class was a bit behind so he did end up rushing a bit at the end when we got to actual hypothesis testing and he was barely able to finish the last lecture materials on the very last day of class. Things really do pickup very quickly after the midterm. This makes it a bit hard, especially because you likely fall behind at least a bit while studying for the midterm itself but it's doable as long as you have a good TA (Alec was great during my quarter) and try not fall too behind.

The final, like the other guy said, was definitely hard. it was more than twice the length of the midterm in less than twice the time (30 questions on midterm, 80 on final). On the other hand, no you don't need a tutor as long as you can... you know... study? The content on the final is definitely harder than the midterm. DO NOT solely rely on his practice questions to study for the final!! While that's a good strategy for the midterm, it will NOT help you for the final as the content is much more difficult and is meant to put you in a huge time crunch. That being said, he told us he didn't expect anyone to finish the exam (nobody did) and thus you should take your time, do the easiest first, and try to be as accurate as possible before just bubbling randomly in the last minute or two. I studied as many textbook, practice problems (TA and prof), and past exams from other classes as I could to be familiar with any type of problem he could throw and ended up getting one of the highest scores. The final is curved VERY generously though so don't worry. Average score was about a 50% i think

Overall, surprisingly good professor. Definitely a nice guy who does care. His accent can be rough at times but honestly he explains things pretty well regardless.

Helpful?

1 1 Please log in to provide feedback.
Quarter: N/A
Grade: N/A
July 31, 2015

great econ professor in econ department. You can learn a lot from the class. Selling textbook for econ41. Text me **********

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1 2 Please log in to provide feedback.
Quarter: Winter 2023
Grade: C
May 4, 2023

Avoid at all cost. Good luck understanding his "ENGLISH". Only reads off from slides

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Quarter: Winter 2023
Grade: A
Verified Reviewer This user is a verified UCLA student/alum.
April 4, 2023

-- Professor Liao suffers from the classic UCLA professor curse of having wonderful lecture notes but terrible lecturing skills. He has a strong accent and just reads off the slides, so I stopped going after the first lecture because it was a waste of my time.
-- The lecture slides were very detailed, and this class is basically a dumbed-down version of Math 170E (or its equivalents). I took 170E this quarter as well (for the Data Engineering Minor) so I learned the material more rigorously in that lecture and carried it over to this class. I had no issues on either exam (there is one midterm and one final), which were both averaged around a C. The final grade is 30% midterm, 70% final. I got a 100 and 90 on the midterm and final, respectively. The final was significantly more difficult than the midterm. You do not get any lecture notes, only a janky calculator that he provides for students (and your wits). There was optional homework (for no credit) each week, with answers posted as well. It was great practice for the exams! He also posts a practice midterm and practice final before each real exam, and the topics are VERY similar to the real exam. Understand them well, and you'll do great!
-- Also, this class is graded on a pure curve (which I have many disagreements with since it discourages collaboration significantly), with 25% getting As, 35% Bs, 25% Cs, and 15% failing. I had a few friends in the class who I studied with for the exams and it was pretty smooth sailing for me.
-- Overall, this class wasn't too bad for me, though I know many that struggled. It isn't bad, nor is it good. Ok overall. Good luck!

Helpful?

0 0 Please log in to provide feedback.
Quarter: Winter 2023
Grade: B
April 3, 2023

This class was difficult. Significantly harder than 11 imo. The lectures are not helpful. Midterm was easy but the final was significantly harder. Midterm av was like 80 and final av was like 64%. Make sure you study or hire a tutor for this class. Midterm 30% and Final 70%.

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Quarter: Winter 2023
Grade: B
April 2, 2023

Idk, this class just has the midterm and final and that's it. The midterm was easy compared to the final, the avg was like a 78%, while the final average was like a 60%. The entire class grade is based on ranking and only 25% of the class gets A- or better which is kinda tuff. Just be prepared to put in the work the week leading up to his tests and you'll be fine. At least he has a sense of humor at times!

Helpful?

0 0 Please log in to provide feedback.
Quarter: Winter 2017
Grade: A+
March 22, 2017

A fair class...Contents can be a bit confusing if you don't go to the lectures at all or they are completely new to you because there is more width than depth in this course. But just because of that, once you are able to comprehend the core concepts, it would be an fairly easy course.

Helpful?

0 0 Please log in to provide feedback.
Quarter: Fall 2015
Grade: A
Sept. 3, 2016

Selling the textbook A Brief Course in Mathematical Statistics by Elliot A. Tanis and Robert V. Hogg (Prentice Hall) for $60.
Email *************.

Helpful?

0 0 Please log in to provide feedback.
Quarter: Spring 2016
Grade: A+
June 18, 2016

It was so easy that I got A+ even though I did not go to any of his lectures after the midterm. It's extremely helpful if you take Stats 10 before taking this class.

Helpful?

0 0 Please log in to provide feedback.
Quarter: Winter 2023
Grade: D+
April 30, 2023

Professor read off slides that were so hard to understand because he didn't explain the notations unless you ask him. I could've put more effort into this class but I was juggling two mgmt classes at the same time so my grade suffered. if you're not a mathy person this might be hard for you. I found econ 11 to be easier but that's also cuz I had a great professor too. shoutout to surro :p

Helpful?

1 0 Please log in to provide feedback.
Quarter: N/A
Grade: N/A
April 10, 2015

Liao was actually a surprisingly good professor. The quarter I had to take Econ 41 I didn't have the option to go with Rojas that I wanted, so I was nervous about taking Liao since he had no reviews and I heard his accent is pretty tough.

Nevertheless, the class is incredibly straightforward. All lecture notes are posted online and he merely goes into them in more detail in class which is very helpful since you can study things you may not have understood in class at home and clarify things in his online notes during lecture. The midterm was very easy and covered only up to basic probability concepts such as independence and conditional probabilities. It's made super easy and I, like a lot of people, was able to get 100 on it. He also provides a significant time gap between the midterm and the last content covered on it. So you have a good 2 weeks to study for the midterm which was very generous.

Our class was a bit behind so he did end up rushing a bit at the end when we got to actual hypothesis testing and he was barely able to finish the last lecture materials on the very last day of class. Things really do pickup very quickly after the midterm. This makes it a bit hard, especially because you likely fall behind at least a bit while studying for the midterm itself but it's doable as long as you have a good TA (Alec was great during my quarter) and try not fall too behind.

The final, like the other guy said, was definitely hard. it was more than twice the length of the midterm in less than twice the time (30 questions on midterm, 80 on final). On the other hand, no you don't need a tutor as long as you can... you know... study? The content on the final is definitely harder than the midterm. DO NOT solely rely on his practice questions to study for the final!! While that's a good strategy for the midterm, it will NOT help you for the final as the content is much more difficult and is meant to put you in a huge time crunch. That being said, he told us he didn't expect anyone to finish the exam (nobody did) and thus you should take your time, do the easiest first, and try to be as accurate as possible before just bubbling randomly in the last minute or two. I studied as many textbook, practice problems (TA and prof), and past exams from other classes as I could to be familiar with any type of problem he could throw and ended up getting one of the highest scores. The final is curved VERY generously though so don't worry. Average score was about a 50% i think

Overall, surprisingly good professor. Definitely a nice guy who does care. His accent can be rough at times but honestly he explains things pretty well regardless.

Helpful?

1 1 Please log in to provide feedback.
Quarter: N/A
Grade: N/A
July 31, 2015

great econ professor in econ department. You can learn a lot from the class. Selling textbook for econ41. Text me **********

Helpful?

1 2 Please log in to provide feedback.
Quarter: Winter 2023
Grade: C
May 4, 2023

Avoid at all cost. Good luck understanding his "ENGLISH". Only reads off from slides

Helpful?

0 0 Please log in to provide feedback.
Verified Reviewer This user is a verified UCLA student/alum.
Quarter: Winter 2023
Grade: A
April 4, 2023

-- Professor Liao suffers from the classic UCLA professor curse of having wonderful lecture notes but terrible lecturing skills. He has a strong accent and just reads off the slides, so I stopped going after the first lecture because it was a waste of my time.
-- The lecture slides were very detailed, and this class is basically a dumbed-down version of Math 170E (or its equivalents). I took 170E this quarter as well (for the Data Engineering Minor) so I learned the material more rigorously in that lecture and carried it over to this class. I had no issues on either exam (there is one midterm and one final), which were both averaged around a C. The final grade is 30% midterm, 70% final. I got a 100 and 90 on the midterm and final, respectively. The final was significantly more difficult than the midterm. You do not get any lecture notes, only a janky calculator that he provides for students (and your wits). There was optional homework (for no credit) each week, with answers posted as well. It was great practice for the exams! He also posts a practice midterm and practice final before each real exam, and the topics are VERY similar to the real exam. Understand them well, and you'll do great!
-- Also, this class is graded on a pure curve (which I have many disagreements with since it discourages collaboration significantly), with 25% getting As, 35% Bs, 25% Cs, and 15% failing. I had a few friends in the class who I studied with for the exams and it was pretty smooth sailing for me.
-- Overall, this class wasn't too bad for me, though I know many that struggled. It isn't bad, nor is it good. Ok overall. Good luck!

Helpful?

0 0 Please log in to provide feedback.
Quarter: Winter 2023
Grade: B
April 3, 2023

This class was difficult. Significantly harder than 11 imo. The lectures are not helpful. Midterm was easy but the final was significantly harder. Midterm av was like 80 and final av was like 64%. Make sure you study or hire a tutor for this class. Midterm 30% and Final 70%.

Helpful?

0 0 Please log in to provide feedback.
Quarter: Winter 2023
Grade: B
April 2, 2023

Idk, this class just has the midterm and final and that's it. The midterm was easy compared to the final, the avg was like a 78%, while the final average was like a 60%. The entire class grade is based on ranking and only 25% of the class gets A- or better which is kinda tuff. Just be prepared to put in the work the week leading up to his tests and you'll be fine. At least he has a sense of humor at times!

Helpful?

0 0 Please log in to provide feedback.
Quarter: Winter 2017
Grade: A+
March 22, 2017

A fair class...Contents can be a bit confusing if you don't go to the lectures at all or they are completely new to you because there is more width than depth in this course. But just because of that, once you are able to comprehend the core concepts, it would be an fairly easy course.

Helpful?

0 0 Please log in to provide feedback.
Quarter: Fall 2015
Grade: A
Sept. 3, 2016

Selling the textbook A Brief Course in Mathematical Statistics by Elliot A. Tanis and Robert V. Hogg (Prentice Hall) for $60.
Email *************.

Helpful?

0 0 Please log in to provide feedback.
Quarter: Spring 2016
Grade: A+
June 18, 2016

It was so easy that I got A+ even though I did not go to any of his lectures after the midterm. It's extremely helpful if you take Stats 10 before taking this class.

Helpful?

0 0 Please log in to provide feedback.
1 of 2
2.8
Overall Rating
Based on 26 Users
Easiness 2.5 / 5 How easy the class is, 1 being extremely difficult and 5 being easy peasy.
Clarity 2.7 / 5 How clear the class is, 1 being extremely unclear and 5 being very clear.
Workload 3.2 / 5 How much workload the class is, 1 being extremely heavy and 5 being extremely light.
Helpfulness 3.2 / 5 How helpful the class is, 1 being not helpful at all and 5 being extremely helpful.

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There are no relevant tags for this professor yet.

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