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Lee Phillips
เข้าร่วมเมื่อ 5 พ.ย. 2011
STAT 220 Lesson 10.2: Inferences About Proportions
A quick lesson into making confidence intervals and performing hypothesis tests for proportions.
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Lesson 5.1 Adding and Subtracting Polynomials
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Lesson 5.1 Adding and Subtracting Polynomials
Lesson 3.6 Writing Equations Using Point Slope Formula
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Lesson 3.6 Writing Equations Using Point Slope Formula
Lesson 3.5 Graphing Using Slope Intercept
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Lesson 3.5 Graphing Using Slope Intercept
Lesson 3.3 Graphing Day 2 Using a T table
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Lesson 3.3 Graphing Day 2 Using a T table
Lesson 2.5 Solving Absolute Value Inequalities
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Lesson 2.5 Solving Absolute Value Inequalities
Lesson 1.5 Solving Absolute Value Equations
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Lesson 1.5 Solving Absolute Value Equations
Lesson 1.1 Simplifying Algebraic Expressions
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Lesson 1.1 Simplifying Algebraic Expressions
Magnificent explanation and proper treatment of the problem, you are worthy of very high praise
Helped me a lot! Thanks!
can you provide the pdf file please!
This is hands-down one of the best tutorials I have ever watched. Every step is shown and clear and easy to follow. Thank you so much!!
Hellp, I am returning to univerisity after a long time away. I want to finish math 111 as the first course when i get back, I need to practice a ton to get back into it. I know this is perhaps a long shot but could you give me some quiz you could direct me to that would be a good test if i am ready? I was hoping to go through a few final exams from 2021-2023
Wtf!
great video man
Can you send that pdf of the worksheet you were working on during the video please?
i really can't describe how happy i'm am to finally understand how it works , Thank you so much !!
thank youu sooo muchh
i love you, you save my life <3 <3
I wish I found your video earlier..... To other TH-cam teachers: It doesn't matter if it's +1 or -1, minimum or maximum for artificial variables. Please don't say we HAVE TO keep it at a min/max. It's confusing. .... God bless you Lee and thank you very much !!!
you're an actual lifesaver
Hi ! Do you make simplex method and Big M method video ?
Hi! At this time I don't have any videos already made for simplex or Big M, but I could make one next week if you'd like. (This week is kind of crazy for me).
@@leephillips9978 thank you so much
@@leephillips9978 Hey sir, I guess you haven't made any video yet about Big M. Do you have any plan nowadays for that? Cuz' I finally understand it pretty well after few videos on yt, I'd like to watch/learn it from you :)
Can you please tell me the cases that decide whether or not we have a feasable solution for phase 1?
So, if you cannot get an artificial variable out of the set of basic variables, then you are not feasible. We have only reached feasibility when we have pivoted out all artificial variables (all a.v.s set = 0). The way that the simplex algorithm works will always keep us feasible once we are feasible, but the purpose of phase 1 is to get us there. I hope that's what you are asking. Let me know if you have more questions.
Thank you! This helped me out a lot :)
Hello bro thank you so much your explainations are the best
Thanks, and I'm glad they are helpful!
thanks for your video, it help me a lots :33
I'm glad that you found it helpful!
🤦🏿♂️
This is why we can not learn
Thank you sir . İt was a very usefull video for me . I totally understood this topic.
Thank you for the video. I would love to ask about I could obtain values for both the basic variables ad non basic variables after obtaining the objective function
A very insightful video!! Thanks Phil.
Thank you
Can you please, make a video on writing Python code for this problem?
at 9:24, how did you get 0.125?!
Hi Vahid, To get those values I used a solver in Python to solve the problem without integer constraints (just as an LP).
Really good video, you are explaining it so much better than my lecturer. Thank you!!!
I've been through many videos so far and this is the best explanation ever Fabulous! Thank you
Oh man, you saved my day. Thanks a lot :D
Lee are you available for online tutoring? Thanks
Sorry, I'm really slow on answering this, and you probably don't need any help any more, but if you do, you may ask me, and I'll make a video for you (if I know how to do what you are asking me for).
@@leephillips9978 Hey Lee, still needing help! I'll send you a private message!
Not possible to send via TH-cam. Is there any way I contact you somehow?
Cool content