Learn/ A Level Mathematics/ Past Papers/ 2020/ Oct/Nov 2020 /Paper 6 (Variant 3)

Probability & Statistics 2 — Variant 3

A Level Mathematics · 9709/63 · Oct/Nov 2020

Questions

1 of 6 questions shown here, checked against the paper. The others are in the PDF above — they contain diagrams or maths we could not yet verify, and we would rather show you the original than a transcription we are not sure of.

3 [6]

The masses, in kilograms, of female and male animals of a certain species have the distributions

\mathrm{N}(102, 27^{2})

and

\mathrm{N}(170, 55^{2})

respectively. Find the probability that a randomly chosen female has a mass that is less than half the mass of a randomly chosen male.

Published by Cambridge Assessment International Education. Reproduced for study use.

Probability & Statistics 2 — Variant 3

Question Paper

Mark Scheme

Questions