Igcse Model Questions Vol1 2022 Mathematics Question 21
Practice objective / multiple choice question 21 from the 2022 Igcse Model Questions Vol1 Mathematics examination.
Two independent tests are taken. In the first test a student answers 5 multiple‑choice questions, each with a probability of 0.6 of being correct. In the second test the student answers 4 similar questions, each with a probability of 0.5 of being correct. Let \(X\) be the total number of correct answers in the two tests. Find the probability that \(X\ge 6\). Give your answer as a decimal correct to three decimal places.
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About This Question
This is Igcse Model Questions Vol1 2022 Mathematics Question 21. It is one of the objective questions from the 2022 Igcse Model Questions Vol1 Mathematics examination.
Difficulty level: Hard .
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