ECZ 2015 · O-Level Paper 1 — Probability
A fair six sided die numbered 1, 2, 3, 4, 5 and 6 is rolled. Find the probability of obtaining a prime number.
- A. 13
- B. 23
- C. 16
- D. 12
Verified working — step 1
The primes between 1 and 6 are 2, 3 and 5 — three outcomes out of six. P = 36= …The full step-by-step working and final answer are included with Premium — checked against ECZ marking standards.
Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.
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