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If the probability of death is q and the probability of survival is p, find...

Mathematics
JAMB 2025

If the probability of death is q and the probability of survival is p, find the probability of one death and one survival in an accident involving two persons

  • A. p/q
  • B. pq
  • C. p - q
  • D. p + q
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Correct Answer: Option B
Explanation

 1: First survives, second dies: \( p \cdot q \)
 2: First dies, second survives: \( q \cdot p \)

The total probability can be expressed as:

\(\text{Total Probability} = pq + qp = 2pq\)

Since \( 2pq \) is not an option, the closest form is \( pq \).

There is an explanation video available below.


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Explanation Video

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