Pls help me solve 55 x 77 x 247903

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?

This is about circle theorems. someone asap : (

Which statements describe the solutions to the inequality x< -20 check all that apply. there are infinite solutions. each solution is negative. each solution is positive. the solutions are both positive and negative. the solutions contain only integer values. the solutions contain rational number values.