- 1 Marks
Question
The following tree diagram shows the scenario with two paying cashiers (C1 and C2) at a Microfinance Bank where M represents mutilated notes and N represents new notes:
he probability that a customer of the bank does not receive a mutilated note is:
A. 0.1125
B. 0.8725
C. 0.8875
D. 0.8525
E. 0.8850
Answer
Answer: B
Explanation: The correct answer is B. The probability that a customer does not receive a mutilated note is calculated by considering both cashiers:
For C1: 0.89 (probability of new notes)
For C2: 0.85 (probability of new notes)
The overall probability is weighted by the cashiers’ usage probabilities:
(0.58 × 0.89) + (0.42 × 0.85) = 0.8725.
- Tags: Cashiers, Mutilated Notes, Probability, Tree Diagram
- Topic: Probability
- Series: NOV 2014
- Uploader: Dotse