A student measures the amount of water, x, that his classmates drink during one day and compares it to the amount of sleep, y, that they get. When he computes the correlation coefficient, he gets 1.18. What does that say about the relationship between the amount of water and amount of sleep?

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling