PLEASE HELP ME ASAP :(

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?

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

The reflexive property of congruence lets you say that ∠pqr ≅