Answer:
a. A man should install the light because the expected benefit of $50,000 is greater than the cost.
Step-by-step explanation:
Let’s consider the cost required to install traffic lights= $10000
The expected benefit is equal to the value of human life * 0.5%.
= 0.5% * $10 million= $ 50000.
The best option is to consider the most beneficial option to be taken. It is clear that installing traffic lights is more advantageous because the expected benefit of $50000 exceeds the cost of installing traffic lights.