I had zero idea at first and science project due next day. You are the reason I managed to complete it. Thank you so much, continue on, you are great at this. :D
Matt, just find the equation of the regression line and substitute each value in. You can find the equation using the Median-Median Method or the Least Square Method.
In the first example that you showed, I got the exact values for x=5.1 and for x=9.3: when x=5.1, y=3.55 ; when x=9.3, y=5.65. If you're wondering how I got those values, here's how: I found the equation of the line to be y=(1/2)x+1.
The problem with that is in the fact that, while you did a great job is discovering the root equation that allows you to find exact values, the question directs you to ESTIMATE to find your solution. While the above will certainly assist you in increasing accuracy, for testing purposes, giving an exact answer will likely yield an incorrect mark as it represents a failure to follow instruction. Example: putting y = 3.55 instead of say, y = 3.6 or 3.5 Just a heads up as it's definitely something to watch out for, and when in doubt, ask your instructor for clarity.
Thank you, i am really good at math and one of the top students in my class at math but stuff about graphs really confused me and i didnt know what it was and how it works but now i do,thanks, this helped me a lot. i watched 3 different vids to explain but this one was very simple and made sense,great work.
This stuff is really easy if you have a computer. For the first one, using a Python interpreter after finding the equation (y=x/2+1), I found that if x=4, then y=3. If x=5.1, then y=3.55. If x=9.3, then y=5.65. For the second one, the equation (y=x*175) means that when x is 2 minutes, y is 350 meters, and when y is 1000 meters, x is about 5.7 minutes.
Hey there, I'm sitting my Physics EMPA on Monday, where I may have to extrapolate a graph. But what if the line of best fit does not go through the origin? How would I find out values out of the scale to the left of the graph i.e. if the y intercept is negative?
Blg Oz Hi, can we use interpolation for measuring a KPI scorecard Want to use this for both increasing and decreasing thresholds? (Strecth and target values) then interpolating to a scale like 80-100 Both for reduction KPIs (e.g interruption duration) and increasing KPIs (e.g market share)
so what is the point of extrapolation? It seems that interpolation would be more accurate because it uses the data points you already have.The more complex the graph is... the more difficult it is to "predict" how to extend the graph. can you give an example where extrapolation is more efficient than interpolation?thanks
Maybe if you had a graph that went from 2000-20xx which showed the amount of $/£ spent on average a year and they ask you to predict how much will be spent on average over the years 20xx +1/ 20xx+2/etc. Of course doing this implies that the trend stays the same so it is seen as inaccurate.
oh...I see.Interpolation would be used for the data that you do have to make an accurate assessment and extrapolation would be needed for future predictions but it would create inaccuracies because you have to assume that the trend is consistent..
Hi the second question is not correct because it should say “how far did Jeff jog in 2 minutes”. You get the same answer but this could confuse some people so I thought I would mention this in the comments.
I'm watching this 10 years after it was released, thanks Mr. Barnes, if your still here.
you literally saved me from panic i tried other videos but it made me even more confused but you helped extremely thank you
It helps me today when I can't understand our math book regarding to interpolation and exterpolation. Thank you, Mister!
I had zero idea at first and science project due next day. You are the reason I managed to complete it. Thank you so much, continue on, you are great at this. :D
Matt, just find the equation of the regression line and substitute each value in. You can find the equation using the Median-Median Method or the Least Square Method.
I saw the numbers of views was 165, and then I clicked on the video and now there's 190 views. You're famous sir!
edit: 163,059
Thanks for getting me through my homework
+ShadowViking47 You're welcome! Keep up the hard work!
What's ur job ??? It's been 7yers
Years*
@@docJustBetter 4th year engineering
Great help thanks a lot for making this more clear than what my teacher told my class
In the first example that you showed, I got the exact values for x=5.1 and for x=9.3: when x=5.1, y=3.55 ; when x=9.3, y=5.65. If you're wondering how I got those values, here's how: I found the equation of the line to be y=(1/2)x+1.
The problem with that is in the fact that, while you did a great job is discovering the root equation that allows you to find exact values, the question directs you to ESTIMATE to find your solution. While the above will certainly assist you in increasing accuracy, for testing purposes, giving an exact answer will likely yield an incorrect mark as it represents a failure to follow instruction.
Example: putting y = 3.55 instead of say, y = 3.6 or 3.5
Just a heads up as it's definitely something to watch out for, and when in doubt, ask your instructor for clarity.
formdoggie5 Ok, so thanks for your advice, and I hope I remember it.
I figure that interpolating is estimating between two poles.
Thank you, i am really good at math and one of the top students in my class at math but stuff about graphs really confused me and i didnt know what it was and how it works but now i do,thanks, this helped me a lot. i watched 3 different vids to explain but this one was very simple and made sense,great work.
Pro Gamer Same here honestly
Thanks from Kazakhstan! Keep it up!
Very good.thanks a lot.
This stuff is really easy if you have a computer. For the first one, using a Python interpreter after finding the equation (y=x/2+1), I found that if x=4, then y=3. If x=5.1, then y=3.55. If x=9.3, then y=5.65. For the second one, the equation (y=x*175) means that when x is 2 minutes, y is 350 meters, and when y is 1000 meters, x is about 5.7 minutes.
thanks for explaining in very simple way. help me a lot!
Thanks!
Thank you, Mr. Barnes, for the very helpful video!
this man got 156,000 views on a video about math. what a legend
So that's how it's done. This saved my homework, thank you
Super well explained compared to other videos on this subject. Thank you.
thank you this helped me a lot on my hmwk
You're great! Thnx for helping me with my homework
+Thalia Massena Thanks!
I have a math quiz with this in it… I didn’t get it until now😅
thanks this video help me with my work and homework thxs mr b
Thank you, this really helped :)
clear and concise...great job.
Thank you very much! It was very usefull and interesting at the same time :) keep up the good work! Greetings from Serbia :)
Bs
LeafyJohn Gacha why are you replying to a comment that’s six years old
what if the points were not on the graph like if the graph said to go to 1000 but the axis only had 10
this was very helpful!
+Kate D Thanks!
This was very helpful..thnk u so much😊
Nice explanation
Home boi got me through my home work 😭😭 thanks
Thanks very helpful. Pheasy
Nice video...you helped me a lot :)
+Lena R Thanks! Keep up the hard work!
thank you so much
you are a god!
Good explanation! LOL how long did it take him to jog 2 minutes, I am glad you cleared that up!
Hey there, I'm sitting my Physics EMPA on Monday, where I may have to extrapolate a graph. But what if the line of best fit does not go through the origin? How would I find out values out of the scale to the left of the graph i.e. if the y intercept is negative?
what about if ur trying to estimate x values with given y values instead?
Blg Oz
Hi, can we use interpolation for measuring a KPI scorecard
Want to use this for both increasing and decreasing thresholds? (Strecth and target values) then interpolating to a scale like 80-100
Both for reduction KPIs (e.g interruption duration) and increasing KPIs (e.g market share)
Thank You SO MUCH!
Thank u soo much u helped me alot
Can your awnser be more accurate in another method or is this the most accurate way?
Insert teacher who said to watch video under:
Mrs Russell
Mr Tetreault
Thank you and what is the name of this program that you explained the lesson by it ? please
smart notebook
Thank you
No problem
+Eng. Omar Smart Notebook...use it everyday in the classroom. I've had a lot of trouble with it on Mac. Works perfect on my classroom PC.
so what is the point of extrapolation? It seems that interpolation would be more accurate because it uses the data points you already have.The more complex the graph is... the more difficult it is to "predict" how to extend the graph.
can you give an example where extrapolation is more efficient than interpolation?thanks
Maybe if you had a graph that went from 2000-20xx which showed the amount of $/£ spent on average a year and they ask you to predict how much will be spent on average over the years 20xx +1/ 20xx+2/etc. Of course doing this implies that the trend stays the same so it is seen as inaccurate.
oh...I see.Interpolation would be used for the data that you do have to make an accurate assessment and extrapolation would be needed for future predictions but it would create inaccuracies because you have to assume that the trend is consistent..
Which tool has been used in this video for demonstration?
Thanks, it is a great help :)
Thanks man!
omg I love u why can't you be my teacher
thanks so much
I want to ask, what is the name of the program you used
I need an exact equation of "Linear regression extrapolation for time series data forecasting", Can anyone help me?
How prove Pn(x) of newton equal Pn(x) of Lagrange
Hi the second question is not correct because it should say “how far did Jeff jog in 2 minutes”. You get the same answer but this could confuse some people so I thought I would mention this in the comments.
Thanks!
Thank you!!
7 years later
thank you
Can I make y=mx+c linear formula?
I think... I love.... Your massive...Equations.
thanks boss
Thanks bro
Are you from Newfoundland?? Cause you sure sound like it
I do like it
*me* came here to find something useful **cough cough* equation **cough cough**
*also me* *found nothing*
Find the answer by computation or slope formula!!!... don't just draw the line, that ain't gonna help on an actual test, it wont be that simple
This is just guesswork. There are actual techniques for finding exact values.
inter- Pol lation
has heho trampas
Bro no entiendo
Suiiiiii
no
Chem H lol.
You need a dog or a gf
+Crookeypizza13 Lol...I have a wife and a baby. I'll pass on the dog.
terrible
Thanks for the help! :D
+Moostache S. You are welcome!
thank you so much