Igcse Model Questions Vol1 2024 Mathematics Question 27

Practice objective / multiple choice question 27 from the 2024 Igcse Model Questions Vol1 Mathematics examination.

Igcse Model Questions Vol1 2024 Mathematics Objective / Multiple Choice Hard Difficulty
Question 27 IGCSE_MODEL_QUESTIONS_VOL1 • 2024 • MATHEMATICS • objective

A bag contains 8 red, 6 blue and 4 green balls. Three balls are drawn without replacement.\n\n(a) Find the probability that exactly two of the drawn balls are red.\n(b) Given that at least one red ball is drawn, find the probability that exactly two red balls are drawn.\n(c) The above experiment is repeated independently five times. Find the probability that exactly three of the repetitions result in exactly two red balls being drawn.

Answer Options

A. a) 35\/108; b) 35\/90; c) 10*(35\/108)^3*(73\/108)^2 ≈ 0.160
B. a) 30\/102; b) 30\/87; c) 10*(30\/102)^3*(72\/102)^2 ≈ 0.150
C. a) 28\/102; b) 28\/87; c) 10*(28\/102)^3*(74\/102)^2 ≈ 0.130
Correct Answer D. a) 35/102; b) 35/87; c) 10*(35/102)^3*(67/102)^2 ≈ 0.174
Correct Answer
D
Correct Option:
a) 35/102; b) 35/87; c) 10*(35/102)^3*(67/102)^2 ≈ 0.174

About This Question

This is Igcse Model Questions Vol1 2024 Mathematics Question 27. It is one of the objective questions from the 2024 Igcse Model Questions Vol1 Mathematics examination.

Difficulty level: Hard .

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