What is the domain of the relation?

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?

Consider a cube that has sides of length l. now consider putting the largest sphere you can inside this cube without any point on the sphere lying outside of the cube. the volume ratio -volume of the sphere/ volume of the cube is 1. 5.2 × 10−1 2. 3.8 × 10−1 3. 1.9 4. 2.5 × 10−1 5. 3.8

1: 4 if the wew 35 surfboards at the beach how many were short boards?