Which of the following is a description of the data with a correlation coefficient of 0.9? no correlation
perfect positive correlation
high positive correlation
perfect negative correlation

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.