An astrophysicist is monitoring a space telescope's imaging sensors for three types of interference: Cosmic Ray hits (CCC), Solar Flares (SSS), and Thermal Noise spikes (TTT). The probabilities of these events occurring during a specific exposure window are provided below using set notation:
It is known that the telescope's shielding prevents Cosmic Ray hits and Thermal Noise spikes from occurring simultaneously, making them mutually exclusive events (C∩T=∅C \cap T = \emptysetC∩T=∅).
Given that the probability of an exposure having no interference is represented by www, determine the value of www.
200 exam-style questions on OCR A Level Maths 2.3 Probability, covering 2.3.1 Mutually exclusive and independent events, 2.3.2 Diagrams to assist probability calculations, 2.3.3 Conditional probability (A-level only), 2.3.4 Conditional probability from first principles (A-level only), and 2.3.5 Modelling with probability. Each one has a worked solution and a mark scheme showing where the marks go.