In-an-examination-the-probability-of-charles-scoring-the-highest-mark-in-Maths-Physics-and-Chemistry-are-0-90-0-75-and-0-80-respectively-Calculate-the-probability-that-he-will-get-the-highest-mark

Question Number 168035 by pete last updated on 01/Apr/22

$$\mathrm{In}\:\mathrm{an}\:\mathrm{examination},\:\mathrm{the}\:\mathrm{probability}\:\mathrm{of}\:\mathrm{charles} \\ $$$$\mathrm{scoring}\:\mathrm{the}\:\mathrm{highest}\:\mathrm{mark}\:\mathrm{in}\:\mathrm{Maths},\:\mathrm{Physics} \\ $$$$\mathrm{and}\:\mathrm{Chemistry}\:\mathrm{are}\:\mathrm{0}.\mathrm{90},\:\mathrm{0}.\mathrm{75}\:\mathrm{and}\:\mathrm{0}.\mathrm{80}\:\mathrm{respectively}. \\ $$$$\mathrm{Calculate}\:\mathrm{the}\:\mathrm{probability}\:\mathrm{that}\:\mathrm{he}\:\mathrm{will}\:\mathrm{get} \\ $$$$\mathrm{the}\:\mathrm{highest}\:\mathrm{mark}\:\mathrm{in}\:\mathrm{at}\:\mathrm{least}\:\mathrm{3}\:\mathrm{subjects}. \\ $$

Commented by MJS_new last updated on 01/Apr/22

$$“\mathrm{at}\:\mathrm{least}\:\mathrm{3}\:\mathrm{subjects}''\:\mathrm{with}\:\mathrm{3}\:\mathrm{subjects}\:\mathrm{given} \\ $$$$\mathrm{means}\:“\mathrm{in}\:\mathrm{all}\:\mathrm{3}\:\mathrm{subjects}''\:\Rightarrow \\ $$$$.\mathrm{9}×.\mathrm{75}×.\mathrm{8}=.\mathrm{54} \\ $$

Commented by pete last updated on 02/Apr/22

$$\mathrm{Thanks}\:\mathrm{Sir} \\ $$

Commented by pete last updated on 05/Apr/22

$$\mathrm{thanks}\:\mathrm{very}\:\mathrm{much} \\ $$

Terms of Service
Privacy Policy
Contact: info@tinkutara.com