EdExcel A-Level Maths October/November 2021 Paper 3 (Statistics)

[leoygdf]

i dont understand why you are multiplying the probabilities. Like why do you multiply them coz they distributions are equal?

[jakebrooks]

Does anyone know what the name of the method used in 5d is so I can revise it?

[lewischen]

for Q5a, can you not just put the area into the calculator in the inverse normal and find 'k' from there, since you have the values for the mean and standard deviation?

[CyrusWong-jd]

1:05:17 wow I don't even know there is a cool function

[Carol.]

Thank you! Your explanation helped a lot!