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学生对 约翰霍普金斯大学 提供的 统计推断 的评价和反馈

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834 条评论


Statistical inference is the process of drawing conclusions about populations or scientific truths from data. There are many modes of performing inference including statistical modeling, data oriented strategies and explicit use of designs and randomization in analyses. Furthermore, there are broad theories (frequentists, Bayesian, likelihood, design based, …) and numerous complexities (missing data, observed and unobserved confounding, biases) for performing inference. A practitioner can often be left in a debilitating maze of techniques, philosophies and nuance. This course presents the fundamentals of inference in a practical approach for getting things done. After taking this course, students will understand the broad directions of statistical inference and use this information for making informed choices in analyzing data....


Oct 25, 2018

Course is compressed with lots of statistical concepts. Which is very good as most must know concepts are imparted. Lots of extra reading is required to gain all insights. Very good motivating start .

Sep 24, 2020

the teachers were awesome in this course. I liked this course a lot.Understood it properly.Thanks to all the beloved teachers and mentors who toiled hard to make these course easy to handle.Gracious!


401 - 统计推断 的 425 个评论(共 801 个)

创建者 ramkumar j

Apr 27, 2020


创建者 Rizwan M

Oct 5, 2019


创建者 Ganapathi N K

May 4, 2018


创建者 Jay B

Aug 30, 2017


创建者 Yi-Yang L

May 9, 2017


创建者 Gerardo S M

Apr 28, 2017


创建者 E. M

Apr 24, 2016


创建者 朱荣荣

Mar 12, 2016


创建者 Amit K R

Nov 21, 2017


创建者 Achinta D

Feb 13, 2017


创建者 Wei W

Oct 7, 2017

There is no doubt that Brian is extremely sharp and knowledgeable about statistical inference subjects. However, I tended to agree the following forum comments from another fellow student.

“…This is unfortunately the worst lecture that I have come across in the Data Science stream so far. The presenter zips through it at a lightening pace. The pace, content, presentation, examples - NOTHING - is suitable for the intended audience (i.e. people taking up the data science stream). The lecture appears to have been recorded for some other audience - maybe people taking up a university course in advanced sats - and just plugged-in into this coursera stream. I wish the course publishers (Johns Hopkins) had put in a little bit of thought and effort into this module and tailored it for this specialization stream rather than lazily lifting and dropping a pre-recorded lecture from elsewhere. It should have been slower-paced - maybe split into 2 or more slower-paced lectures that are gentler on the Data Science stream new bees...”

创建者 Kaspar M

Sep 7, 2020

This course gave me a pretty good basis for a lot of subtopics in the field.

However, it was very frustrating at times. Brian, the instructor, clearly operates at a high level and in his explanations he makes frequent conceptual leaps that are difficult to follow. I spent a lot of time on Wikipedia and Googling the details of the various distributions.

Also, the exercises in the associated mini-textbook have a similar problem: there is not enough practice of the basic concepts to give a beginner confidence (no pun intended). Many of the exercises suddenly introduce assumptions that a beginner would never have made. So, expect to get everything wrong the first time, and then look at the answer and figure out the two or three new aspects of statistics that you needed to know.

创建者 Even R

Feb 10, 2018

I have done PhD level statistics courses before, but found that they either went too deep into theoretical mathematics as to completely loose the audience (at least me), or to not even try explaining what is going on under the hood of R or SPSS. What I really like about this cource is it pushed me to do calculations by hand, which really helped me understand the concepts. Dr Caffo is clearly a skilled statistician and the course is at its best when he goes off script (at least off slides) to explain and illustrate concepts. Minus one star because unfortunately the presentation of the material is uneven and some times distracting, e.g. talking very fast.

创建者 Ada

Nov 14, 2016

This was the toughest of all the Data Science courses so far. Without the statistical inference book, the practical exercises and the swirls it would have been very challenging to pass the course. These were very valuable tools. The videos that are available when I couldn't get a practical exercise right, also helped me a lot.

I majored in mathematical statistics 40 years ago, but have never used it in my whole career. But in my opinion this course explained the concepts much better than how it was done 40 years ago. Congratulations to everybody involved.

I have learned so much and was really proud of myself when I passed this one.

创建者 Joel H

May 4, 2020

I think overall Professor Caffo does a fairly good job of explaining the material, though he covers a lot of topics quickly within the course. So I found myself having to pause and rewind often when taking notes. The course project was definitely the most challenging aspect of the course for me, since my background is in SAS and am an R novice. I spend a full weekend putting the report together. Since so many topics were covered in such a quick fashion, I don't think I retained it as well as I should. Luckily my undergrad statistics background helped a bit, even though it was over 20 years ago.

创建者 Robert O

Jul 14, 2017

I get that the subject matter is hard and so this isn't going to be easy to absorb regardless of how it is taught. My biggest challenge was too many overloaded sentences where to understand the new area that was being focused on there was an assumption that i already had firm grasp on the set of other subject areas referenced in the same sentence. A lot of confusion as well arising from terms that sound the same except for one word or context of their use which maybe could be helped along by a summary slide of terms and meaning at the end of each lecture or section.

创建者 Kalle H

Jan 28, 2018

Nice course with an appropriate level covered for the data science specialisation (assuming people taking these courses very have different prior knowledge of statistics). It would however be good to add a second statistics course to the stream with some more advanced topics. Yet, it is still one of the harder courses of the specialisation.

The only big criticism I have is that the course feels a lot less polished than other parts of the specialisation. It feels like cut and pasted parts of other courses added into one course than its own entity.

创建者 Alberto G G

Dec 11, 2016

I am interested in taking the Regression Models course and took this one as a refreshment for the statistics knowledge I already had. I found the course well done and the resources easy to use and throughout.

As a negative point I would mention that as the topics get more involved, the time dedicated to each one seems to decrease, to the point where both MULTIPLE TESTING and GROUP COMPARISONS are pretty much a briefing, which kind of defeates the purpose of including them on the course in the first place...

I give the course a 8.5 out of 10.

创建者 Evgeny P

Jun 2, 2018

Very... practical approach. Almost no math, almost no theory - but much R code to write and understand. Now almost any person could be a statistician.

I would prefer more details about caveats of the job, at least about p-value controversy. I would prefer more theory. But perhaps it just mean that I should take another course in addition to that one.

Thanks to Brian, Roger and Jeff for teaching me. Thanks to my fellow students - it was nice to interact with you. Thanks to Coursera and to Johns Hopkins University for making this happen.

创建者 Blaž Z

Aug 27, 2019

I know this is a very shallow dive into the field, yet I have the feeling I could have learned more. The absence of judgment whether my calculations in the project were correct or not was confusing too me since in statistics it's more important to correctly interprete the result then to get the result. Calculation and interpretation of results should become routine and more different, practical, coding exercises would be very cool to have. Having that said, I still much appreciate the Data Science Specialization as a whole.

创建者 Miguel C

Apr 25, 2020

Since I already had some background on probability and statistics, there was a lot I already knew here. However, the use of R throughout and the contents of week 4 (power, multiple comparison, bootstrapping) were all new and I really enjoyed learning them.

The lecturer was really knowledgeable, but I believe sometimes he was a bit monotonic making it slightly harder to follow. However, the lecturer did make a huge effort in explaining everything carefully.

Overall, I really enjoyed this course and I would recommend it.

创建者 Lars B

Oct 2, 2016

I liked this course, and found the lectures interesting and would give them perfect marks on being instructive. However, I found that there are some speling errors here and there, and a remarkable frequency of sirens audible in the lectures (is JHU in a difficult neighborhood?), and sometimes it was hard to recover the plots from the git repository.

But, more importantly the curriculum and teach was very good, and the use of examples after the theory makes it much easier to grasp difficult concepts.

创建者 Samuel Q

Apr 2, 2018

Very good and informative course. Brian's teaching style is not the best. The quizzes were not easy. But then this is a University Level course and students need to be resourceful. The textbook helps a lot as does the rmd. files available through GitHub. The mentors in the forum are very helpful.

My recommendation : add one more course project (or two). These really help with learning how to deal with real data and how to apply what we've learned in the lectures.

创建者 Francisco J D d S F G

Oct 22, 2016

The course on statistical inference is a crash course on frequentist statistics; in my opinion the contents are appropriate for statistical inference, though most of the concepts that are taught deserve more attention, or perhaps split throughout other courses.

Nevertheless, Brian makes a terrific job to compress all of these topics into a single month course which is impressive - for someone familiar with statistics it's actually an enjoyable course.

创建者 Momoko P

Dec 8, 2016

I thought the course material was great but I think the grading criteria for the assignment should be more rigorous and check for proper methodology/application of techniques, just because I'd like to know that my approach to a given data analysis is sound and that the conclusions I draw from running tests, p-value adjustment, calculating power, etc. are statistically valid.

Overall a great primer! Thanks to Brian & Jeff for putting this together :)