We have previously discussed this situation. Hockey pucks are dangerous when they fly outside the arena, and plexiglass is often used to protect fans from injury. An injury inflicted by a hockey puck causes harm equivalent to $100,000. The height of the plexiglass and the corresponding costs and risks of injuries are described in this table: We have seen that the expected harm of the accidents, or p(x)A, was as follows: When precaution level is high: 0.103(100000)=$10,300 When precaution level is medium: 0.123(100000)=$12,300 When precaution level is low: 0.155(100000)=$15,500 When precaution level is zero: 0.21(100000)=$21,000 17. We now ask: what is the reduction in expected harm (that is, the marginal benefit of precaution) in the following cases: When precaution level increases from medium to high: When precaution level increases from low to medium: When precaution level increases from zero to low: 18. What is the additional cost of precaution (that is, the marginal cost of precaution): When precaution level increases from medium to high: When precaution level increases from low to medium: When precaution level increases from zero to low: 19. What level of precaution is required by the Hand Rule (High, Medium, Low or None)? Explain. We have previously discussed this situation. Hockey pucks are dangerous when they fly outside the arena, and plexiglass is often used to protect fans from injury. An injury inflicted by a hockey puck causes harm equivalent to $100,000. The height of the plexiglass and the corresponding costs and risks of injuries are described in this table: We have seen that the expected harm of the accidents, or p(x)A, was as follows: When precaution level is high: 0.103(100000)=$10,300 When precaution level is medium: 0.123(100000)=$12,300 When precaution level is low: 0.155(100000)=$15,500 When precaution level is zero: 0.21(100000)=$21,000 17. We now ask: what is the reduction in expected harm (that is, the marginal benefit of precaution) in the following cases: When precaution level increases from medium to high: When precaution level increases from low to medium: When precaution level increases from zero to low: 18. What is the additional cost of precaution (that is, the marginal cost of precaution): When precaution level increases from medium to high: When precaution level increases from low to medium: When precaution level increases from zero to low: 19. What level of precaution is required by the Hand Rule (High, Medium, Low or None)? Explain