Probability Tree Diagrams: Weather & Cricket Match Problem (Grade 4/5) | Edexcel Maths (1MA1/4MA1)

Master completing and calculating probabilities from tree diagrams step by step. In this tutorial—part of our curated "Best Guess" revision series for the November examination papers—we cover completing the branch probabilities using the rule that branch pairs sum to 1 (1−0.35=0.65 for does not rain, 1−0.8=0.2for not cancelled, and 1−0.9=0.1for cancelled), multiplying along branches to find combined outcomes, and adding the two mutually exclusive outcomes (0.35×0.8=0.28 and 0.65×0.1=0.065) to find the total probability of the match being cancelled (0.345) to secure full marks (Approx. Grade 4 / 5). What's in This Video: Guided Practice: A full step-by-step walkthrough of filling in decimal tree diagrams and identifying all successful combined pathways. Mark Scheme Non-Negotiables: Essential tips on avoiding branch label mix-ups, properly multiplying along paths, and adding branch products to capture all method marks. Exam Series Focus: Targeted exam-style preparation built directly around high-frequency crossover probability topics. Perfect for Pearson Edexcel GCSE (1MA1), Pearson Edexcel IGCSE (4MA1), AQA, and OCR GCSE Mathematics (Foundation & Higher crossover). Exam Paper Alignment: Looking for Pearson Edexcel GCSE Maths (1MA1) past paper practice? Probability tree diagrams are classic crossover questions appearing towards the end of Foundation Papers (Paper 1F, Paper 2F, Paper 3F) and the start of Higher Papers (Paper 1H, Paper 2H, Paper 3H). Download Worksheet for this question: https://mygrade9mathstutor.com/best-g... Download Resources & Worksheets: 📥 Worksheet & Questions: https://www.mygrade9mathstutor.com/gc... 🏆 Grade 9 Resource Vault: https://www.mygrade9mathstutor.com/ Connect & Subscribe: 🔔 Subscribe to @MyGrade9MathsTutor for more elite mathematics support and weekly walkthroughs! 🌐 Official Website: https://www.mygrade9mathstutor.com #GCSEMaths #IGCSEMaths #1MA1 #4MA1 #Probability #TreeDiagrams #ProbabilityTree #CombinedEvents #MathsRevision #EdexcelMaths #FoundationMaths #HigherMaths #PastPaperWalkthrough #MyGrade9MathsTutor