What does it mean to say that two variables are positively associated

Sara and her friends were at an iowa football game in iowa city. sara is a life long resident of iowa and goes to college at dmacc. while she was in iowa city, robert smashed into her car when he ran a red light. sara was seriously injured and taken to university hospitals in iowa city (fortunately her injuries were not life threatening but laid her up for a long time and she had to drop out of college for the rest of the semester). robert is from michigan and was in iowa city to see the game and then to party later. at the time of the accident robert was drunk (at least legally - he blew a 0.17 and the limit is 0.08). sara has sustained about $500,000 in damages between her current and future medical bills, pain/suffering, lost wages, etc. also her car was totaled in the accident. can sara sue robert in a federal court? explain why or why not. (be sure to mention the two primary factors associated with suing someone in a federal court in a case like this.)

Create a time line of the important battles of the revolutionary war beginning with fort ticonderoga and ending with the british surrender at yorktown in 1781. asap. will crown brainiest

Predict how the transcontinental railroad will make a difference in the civil war. now, research the inventions of the 19th century. tell what other inventions of the 19th century will change the way people see and remember the war? why?