A. the time it takes to hand carve a guitar neck is uniformly distributed between 110 and 190 minutes. 1. what is the probability that a guitar neck can be carved between 95 and 165 minutes? 2. what is the probability that the guitar neck can be carved between 120 and 200 minutes? 3. determine the expected completion time for carving the guitar neck. 4. compute the variance.

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?