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
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
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 \( pq \).
Source: WAEC / JAMB / NECO Classroom Archive (Record #74176)