1. An express mail service charges a special rate for any package that weighs less than 1 pound. Letx denote the weight of a randomly selected parcel that qualifies for this special rate. The probability distribution of x is specified by the following density curve:
2. A particular professor never dismisses class early. Let x denote the amount of time past the hour (minutes) that elapses before the professor dismisses class. Suppose that x has a uniform distribution on the interval from 0 to 10 minutes. The density curve is shown in the following figure: