XBar-R Control Charts 

Jim if you see this 8 years later, you are the man. This was beyond helpful

Hey Jim, you are awesome. Even after 11 years your videos are still helpful.

Thank you so much! This was very helpful and straightforward. Every other video I've found for this makes it super extra complicated for no reason.

THANKYOU SO MUCH!! I had absolutely no idea what the hell I was doing and I still don't and yet I have two complete and complicated looking graphs that fit the description so I won't look like a total idiot to my lecturer. Thanks man!

Mr. Grayson is amazing he helped me complete my X Bar / R Bar Assignment and it looks professional and organized. He also showed me how to make models for both of them using line graphs. This made my assignment 100% easier and more precise because I did not manually complete my calculations, excel did them for me.

I've been near tears trying to figure this out with no guidance in my textbook. This has saved me. Thank you very much!

Jim, I was stuck on a question for my final, this helped me tremendously. Want to thank you and wish you all the best. Life saver.

Thank you so much for the explanation on making an x-bar chart and R chart! This really helped me out! :D

This wraps up hours of reading and struggling in about 5 minutes that's easily understood. Thank you!

Thank you so much for these videos, not only do they help me out with assignments, but they are a really good learning tool, you show the information well and I feel that I really learn a lot from them! Thanks!!

this is absolutely great! I am a 4th year uni student, understood this more than I did from lecturer!!!

This video was extremely helpful. Thank you for taking the time to put it together and share.

This is one of the best videos I've ever seen related to the topic. Thank you so much Mr. Jim. ! I admire you !

best video ive seen on this topic. Super concise and easy to understand.

Thank you so much Jim. I am doing my Master in Project Management and your video has helped me a lot. All the best for you and take care, stay safe. God bless you :D

Need more people like this on RU-vid just simple explanations. Thank you!

Most direct way I've seen it explained. THANK YOU SO MUCH!

If something is greyed out it typically means there is an editing process happening with a cell. Make sure no cells are being edited. Then, highlight a range of cells for the chart and insert | chart | line and it should work.

Thanks a lot, sir. Your teaching style is simple, effective, and super engaging.

I just want to say you are a hero! Thank you so much! I was so lost when I was learning this in class... but you saved me! I wish my prof was as good as you at explaning....

Great and quick explanation. You saved my exam grades, thank you very much!

Thank you for posting this video! I've had a hard time understanding during class and I had to do a search while doing my homework. This helped so much! Really appreciate it.

Most useful explanation on You Tube. Thank you very much.

You mate are a diamond, it's currently half 6 in the morning and I've working all night, but you friend, have this day a bit brighter by not making a pointless 40 minute video. Cracking tie as well lad.

Can't explain how much you have helped me Mr. If a life, may you be added another year sir

This is a very well explained example. Saves me a lot of time.

Super helpful! I just completed a final case study thanks to you!

EXTREMELY helpful. Thank you so much!

Jim thank you you're killing it in 2021

You sir, were so very helpful! Thank you so much for this tutorial!

Thanks Jim. I wondered how that was done. I love your videos.

This video helped tremendously. Connected all the dots for me. Thank you!

I know this is now 11 years later, but thank you!

thank you Jim, you helped a lot of people

Jim I was studying for my exam last minute and this video did wonders. Thank you so much. I hope everything is well with you.

Jim, thank you for this!! 11 years later and you're still bailing people out!

I just want you to know that this saved my stats grade nearly 1 decade later. Thank you Jim!

Jim, this was very helpful. Thank you very much!

Thank you you are a life saver! Got A+ in Industrial Engineering thanks to you!

Cheers Jim. Great tutorial!

Thank You for taking the time to answer............Have a good weekend!

Thanks sir. Straight shooter getting straight to the point, nice!

Great refresher! Thanks for explaining!

In an online course and we barely covered this. Had no idea the formulas or anything. With in minutes this started making sense.

Thank you so much! This has been a lifesaver!!

Thank you for this tutorial Sir, helped a bunch today!

AWESOME! Easy to understand for me! Thank you!

Thank you! Wonderful step-by-step video, very helpful.

Thank you for helping me complete my XBar chart.

I wish you were my teacher. You walk through everything step by step. :) Ty for this.

Thanks a lot really helped me out and saved me a lot of time !

Thank you, sir. This tutorial was very good!

10 years later and you're still relevant Jim

To make a cell a fixed reference you can highlight the cell in a formula and then use the F4 key to put the $ sign in front of both the row and column reference, for example $C$4, and this would make the cell C4 a fixed reference.

Thank you so much for your video! It helped me understand precisely the content and how to use Excel.

Thanks for explaining this so clearly!

My man, you are a life saver!

Very helpful, Jim. Thank you for this.

Excellent video, thank you for sharing your knowledge.

Awesome job.. thank you for keeping it simple.

MBA student of UCW, in canada. thank you for this video. it helped me in solving an assignment under operations management class.

Very helpful and clear explained. Thank you!

Thank you so much! This was really very helpful!

Thank you so much for this!!!! Very helpful!

Thank you, great way to explain!!

We insert $ signs before a column and/or row reference to fix that reference so that when we copy a formula it always refers to that reference cell with the double dollar signs

Thanks. Glad it was helpful.

Great video. Like your teaching :)

Brilliant explanation thank you you really helped me with my assignment.

You are the man! Thanks so much!

Thank you very much Mr.Grayson🙏 Very helpful in my studies in 2022🙏Bless you.

Jim you're the man! Thank you so much it was very helpful for my homework!

Awesome video, thank you so much!

Thank you so much!! Excellent video!!

Thank you! Very thorough explanation! THANK YOU, you helped me earn my Six Sigma!

Very informative. Thank you!

Very helpful for teaching my university class on Quality Assurance, thanks!

Thank you so much !!!! This is very helpful!!!

This was really well explained

Thank you so much. Very clear and helpful :)

thank you for the amazing video

thanks for posting! it really helped with my assignment :)

This video save me from failing! Thank you!

Thank you so much sir! You just save my assignment

thank you sir, you clearly explain these 2 types of control charts

Great explanation !! Thanks alot

i love the fax machine sound in background and also the smell of paper being shred

This is a great video. Thanks. Logged in to thumb this up and leave a comment. Rarely do that.

Thank you for your help it help me solve a school assignment!

Thanks for simplifying the concept, Excellent explanation @jim Grayson

You are a legend thanks bro

v impressive and excellent example of understaning. much appreciated. pls share X-Bar- S chart also.

Thank you Thank you Thank you so very much for your guidance!!!!

Thank you! Thank you! Thank you! Excellent video.

I am going to Pass my final because of you. I appreciate you

you are so awesome !!

Great video

Very very helpful! Thank you

thank you so much sir. your video was really really helpful!

VERY usefull thanks alot! great teaching skills