Struggling with IB HL AI Math Paper 3? Specimen Q1 Solution Walkthrough

I go through the IB Mathematics HL AI Applications Specimen Paper Q1, where there is a lot of IB Math HL Applications statistical testing.

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[lincolntetteh-ahinakwa]

The question is looking at the effect of an increase of one unit in effort grades (which will be your "x"), on the improvement between predicted and final points ("y"). Hence for your your linear regression, Xlist will be the change(c) and y will be the average effort score. The gradient of that regression line is 6.6

[jessielin]

Hi there, this video is so helpful so thank you so much. I was wondering if you would be able to do a walk through of the second question for those students sitting the N2021 exams. Totally understand if your schedule is too packed though! It would help immensely!!

[alanlands]

How many different kinds of official IB tests are there? I know about past exams, but I just learned about specimen papers -- are there any more kinds of tests that are made from the IBO that one could practice on?

[vi-uujp]

love your videos, would love more from you sir!

[Mathspaperksks]

Great video sir good job keep up your hard work sir.

[ziadtaha]

Hello, is it possible to post a video for the second question? That would help a lot. Thank you.

[mathscure]

Congrats on 1k subs. Hope I'll get there one day...

[garysolomon]

Hi, Can you explain why for Q1c ii) the population standard deviation is used? Is not sigma the population SD. I thought the question used a sample of students.

[franekstrzembosz]

Are you going to do the second question too? if yes, when could we expect the video?

[Abcdeee_p]

hey, the question needed the x list and y list to be changed but I did not know that b stands for the gradient isnt it ax+b for the calculator

[frank-fvpe]

I missed my mock paper 3, so idk the structure of the paper. Is stats the only topic we're examined or this is just one the extracts?

[madhavsharma]

how can I do question 1c in a Casio fx-cg50 calculator?