I was looking at sample 11+ papers online (this is actually for entrance to an independent school). E.g. www.elevenplusexams.co.uk/ which has questions on probability. I then checked the KS2 Maths syllabus where there seems to be no mention of probability (https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/335158/PRIMARY_national_curriculum_-_Mathematics_220714.pdf ).
Is probability in fact on the 11+ syllabus but not the KS2 syllabus?