Great explanation, especially for the last question. Not many channels which go as in depth as you do, I appreciate it as it helps understanding the harder questions.
@isavdph71675 жыл бұрын
You have the most easiest answers Thanks vey much
@TechnicallyFootballOfficial6 жыл бұрын
Hi! i was just wondering what exam board is your maths new spec a level section in your website thanks
@mathsgenie78086 жыл бұрын
The content for all exam boards should be the same but it is mainly focused on the Edexcel board
@skymuggherhlegend35096 жыл бұрын
Thanks. I find these videos very useful.
@luisvirgosmatilla56625 жыл бұрын
Hello. Thanks for the video. I wanted to ask you about the last question. You know, where you split the equation into a's and b's. Does that technique have a name? If I know the name, I will be able to search around for other examples. Many thanks. Luis
@williamchen1767 Жыл бұрын
I suggest just searching the question or the main keywords on google
@px82 жыл бұрын
man im not ready for this tmr
@Isa-ny2ec3 жыл бұрын
Haha your funny side makes this easier to learn 😂
@williamchen1767 Жыл бұрын
WTF is question 15 c
@deuterium4.0282 жыл бұрын
what is that last question omfg
@calcpost36414 жыл бұрын
i am so confused over question 21, please can someone help, i still dont get it
@hamzie10104 жыл бұрын
Learn vectors and you should be okay.
@user-xw4mu6nz4t4 жыл бұрын
I think he explained it pretty well, if there's any specific part maybe even a timestamp mention it and I or someone else will help you
@f-wm7yk8 ай бұрын
does anyone know why he does -a here 1:16:39
@SaswinSuthaparan-y4p7 ай бұрын
iy goes in the reverse direction to +a
@williamchen1767 Жыл бұрын
fantastic video but i dont get 11b can u tell me what u meant by your answer. i will really would appreciate that. thank you keep up the good work😅
@puisker345 Жыл бұрын
Cumulative frequency graphs are constructed using grouped data (e.g., 10 < x < 20 has 20 potatoes, 20 < x < 30 has 23 potatoes etc., where x is the weight of the potatoes). Therefore, you don't actually know the weights of the individual potatoes in each category - in the examples I gave, each of the 20 potatoes could be 11g or 19.5g, we can't tell from the grouped data alone. The fact that the graph goes up to 80 only tells you that each potato weighed at most 80g, but depending on what the last category was (e.g., 75 < x < 80, or 70 < x < 80), each potato in that category could have been at the bottom of the weight range, thus there could have been no potatoes weighing 80g, so the range is not necessarily 40g (it could be, but we don't know for sure)