Linear Regression and Unplanned Variances

This topic has 2 replies, 2 voices, and was last updated 15 hours ago by sherose.

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April 15, 2026 at 11:59 am #725746
sherose
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Hello
I took the last paper in March and there was a topic on linear regression and unplanned variances. These are two things I haven’t come across before. But does anyone know how to attempt these? I have looked through notes and can’t find anything on linear regression.
TIA
April 16, 2026 at 3:54 pm #725750
Ken Garrett
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Linear regression is not mentioned in the APM syllabus, but it is assumed knowledge from MA and PM.
See p72 of our MA notes.
April 16, 2026 at 5:04 pm #725751
sherose
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I have looked at the page mentioned – however this doesn’t really clear anything for me. i get the formula y = a+bx. But is there an example I can work this against?
Am I saying if A is 5
B is 10
and X is 130
I do 130 x 10 = 1300
plus the value of A, this would be 1305?
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