Sir you've been my main math help since my O Levels and now I'm a 2nd year university student still finding myself going back to your videos, thank you so much for your outstanding explanation of various topics that have made math so much simpler!
You are amazing! Seriously the best maths teacher I've ever heard. I have my Year 13 Stats exam in two days (from NZ) and I know this will help me greatly :)
Thank you so much for helping with continuity corrections, I had absolutely no clue how to do them before watching this video so I really appreciate it!
After one year of statistics, and with my S4 exam tomorrow morning, only now have I really understood continuity corrections. Why teachers in classes cannot explain things as clearly as this I will never understand!
I'm still confused if we use the calculator I get a different answer after finding for the z probability I don't know if I should use the normal cd or the other method P
So I know I'm kinda late to the party but is it mainly based on which side of the mean the value lies? And if so, how do you know which way to round if the mean is unknown in the question? (so you don't know which side of the mean the test value lies)
When X is greater or equal to 13, why is Y not greater or equal to 12.5 but just greater. Surely Y greater or equal to 12.5 would in any case be also equal to 13 as it's supposed to. (Sorry if it's hard to understand I can try to use symbols on request)
+John Fletcher Greater than or equal is not going to change the final solution as you are dealing with a continuous random variable. However, you can never equal a particular continuous r.v. For example it is impossible to draw a line that is 5 cm long. The line you draw may well look like 5 cm but may measure 5.0000123734 cm. Who knows? My point is that you can never have equals to when working with continuous random variables.
+ExamSolutions what you said makes a perfect sense to me it's just that I was baffled because in the Edexcel S2 textbook in some of the examples they have used the greater to or equal sign in the continuity corrections. I'm learning all of S2 only with the help of a textbook and it's quite a challenge because some of the stuff isn't explained in detail at all.
ExamSolutions Ahh I see, I was worrying there was another reason for why you wouldn't be able to use the tables, brilliant video however, fully understand what you're trying to get across, great job!
Sir you've been my main math help since my O Levels and now I'm a 2nd year university student still finding myself going back to your videos, thank you so much for your outstanding explanation of various topics that have made math so much simpler!
Your explanation of the continuity correction is so clear. As a former math teacher, I've really got to commend you on this video.
Thanks
11 Years later, and this is still amazing help! Thank you!!
yeah frrrr
I have my stats exam tomorrow and this really helped ,thank you alot sir
Best wishes for every success
this guy is OUTSTANDING!!!!
**standing innovation!**
I was so confused about how Binomial Distributions could be used in Normal Distributions. This video clarified all my doubts! Thumbs up!
Thank you, a lot clearer than my course book! Very calm voice and clear explanation.
Thanks for posting this. Put a smile on my face when I began to grasp it. Classes should be taught this way.
crazy that this video is 11 years old but still the best one I've found for this
Good to hear that you have got it.
You are amazing! Seriously the best maths teacher I've ever heard. I have my Year 13 Stats exam in two days (from NZ) and I know this will help me greatly :)
Thanks a lot sir....Was having great difficulty in continuity corrections but two of your tutorials (which includes this one) has helped a lottt...
That's good news. Best wishes to you.
Thank you for the explanation really understood it well!
That's okay. Thanks for watching.
Thank you so much for helping with continuity corrections, I had absolutely no clue how to do them before watching this video so I really appreciate it!
No problem, pleased to hear it helped.
After one year of statistics, and with my S4 exam tomorrow morning, only now have I really understood continuity corrections. Why teachers in classes cannot explain things as clearly as this I will never understand!
Incredibly clear exposition! Thank you very much Sir!
Hector Ceceña Thank you
i have a stats mock soon and this made everything so clear thank youuuuu
This is so helpful during this moment of crisis😭 Thank you so much!
Stay safe. Best wishes
That’s was so great way to teach and understand contnuity correvtion
i bet you are the best stats teacher in the world
These are honestly so helpful! thank you
you literally just helped me pass my exam
06:36 Continuity correction
God bless ur soul thank you for helping me understand this concept
That;s okay. Best wishes
Thanks so much!! I was really struggling with continuity corrections before watching this ...
This was incredibly helpful, thank you so much 🙏
Glad it was helpful!
So helpful, thank you!
Thanks for that support. Best wishes.
Thank you for all videos
I enjoy doing them and pleased to hear if they help.
Thank you, your explanations are very thorough.
Thanks! You solved my headache.
Aspirin works better I thought. Many would say this brings on a headache! Pleased to have cured yours though.
Much thanks, was struggling with this concept but this video made things very clear :)
Thanks for the video. Awesome supplement to any first year stats course.
but p.s. you are the only reason i hope i will pass!! so much appreciation for what you do and all your help!!
Your an amazing teacher!
you really helped me.thank you.
Nice to hear. thanks
Perfectly explained. Thank you!
Thank you
How do you handle a situation where x is a decimal like P(x
simply has to be smaller. P(x < 40.5)
simple and alegant! thanks!
Thank you sooooooooo much!
@youtube. you guys should invest people like him so that we do not pay to schools, where we learn nothing but wasting time
Thank you soo much for this.
hello, could u tell me which of ur playlists this is in?
you are the best
thanks..this was helpful.
Is it possible to calculate the probability without using the Z-Transform? Can't I just do Ncdf with mean = 12 and std = sqrt(7.2)?
very well explained
Thanks
good explanation, tks.
Thank you
Excellent
It was really helpful.
thx :) studies which poison my existence seem less insidious now..
How were your tutorials made Sir (e.g. equipment, software etc.)?
Great .... needed you at class today ... where were you?
Sorry I couldn't be with you I was here having a great time.
I like that. Keep smiling.
Very great
i'm struggling to understand how you achieved 0.9 in the tables. What and where did you look up?
From the normal distribution tables. Google it
I'm still confused if we use the calculator I get a different answer after finding for the z probability I don't know if I should use the normal cd or the other method P
When can u upload the rest of the s2 vids please??
So I know I'm kinda late to the party but is it mainly based on which side of the mean the value lies? And if so, how do you know which way to round if the mean is unknown in the question? (so you don't know which side of the mean the test value lies)
Not at all. You can never equal a value with a continuous random variable.
nice explanation
Yes
Thank you do so much!!!!!
putting this video on 2x feels like its real time
Great explanation on continuity correction
THANK YOU! MY PROF SUCKS!
Good ✌️
When I get time.
tysm
I like this
Now, I'm gonna take the Maths out of my teacher...
When X is greater or equal to 13, why is Y not greater or equal to 12.5 but just greater. Surely Y greater or equal to 12.5 would in any case be also equal to 13 as it's supposed to. (Sorry if it's hard to understand I can try to use symbols on request)
13:10 for reference
+John Fletcher Greater than or equal is not going to change the final solution as you are dealing with a continuous random variable. However, you can never equal a particular continuous r.v. For example it is impossible to draw a line that is 5 cm long. The line you draw may well look like 5 cm but may measure 5.0000123734 cm. Who knows? My point is that you can never have equals to when working with continuous random variables.
+ExamSolutions what you said makes a perfect sense to me it's just that I was baffled because in the Edexcel S2 textbook in some of the examples they have used the greater to or equal sign in the continuity corrections. I'm learning all of S2 only with the help of a textbook and it's quite a challenge because some of the stuff isn't explained in detail at all.
Amazing work.
I owe you money sir
No you don't. Best wishes.
Can i ask some qus.??
Cheers
ExamSolutions How come you couldn't just use the binomial table from the beginning as X~B(30,0.4) is within their ranges isn't it ?
The point behind the video was that I was showing how the Normal distribution approximates a Binomial distribution when certain conditions are met.
ExamSolutions Ahh I see, I was worrying there was another reason for why you wouldn't be able to use the tables, brilliant video however, fully understand what you're trying to get across, great job!
Sorry I think I've expressed myself wrong, I mean instead of "bigger than" only, "bigger than or equal to"
Cool
the exam is tomorrow!!... :'(
When you have P(X >= 16), why can't you just keep it as 16? Why do you have to make it P(X > 15.5)? Surely 16 includes 16 anyway :P?
Greg Cawthorne because anything from 15.5 - 16 is rounds to 16
@serenajoywrigh94 Cool
Thanks