A catalog company that receives the majority of its orders by telephone conducted a study to determine how long customers were willing to wait on hold before ordering a product. The length of time was found to be a random variable best approximated by an exponential distribution with a mean equal to 3 minutes. Find the waiting time at which only 10% of the customers will continue to hold.

Answer; administrator;

These tragedies are more likely to occur  when the benefit to the individual for using a bit more of the resource is greater than the associated cost.for example, a company may choose to dump all of its manufacture waste on the public lake (collective resource) because the cost of actually creating waste  management system would be higher compared to simply dumping them into the lake.

Students in mrs. carr’s class are asked to make a prediction after reading this passage from white fang.but the bane of his life was lip-lip. larger, older, and stronger, lip-lip had selected white fang for his special object of persecution. white fang fought willingly enough, but he was outclassed. his enemy was too big. lip-lip became a nightmare to him. whenever he ventured away from his mother, the bully was sure to appear.which student prediction is most reasonable?