I really really need help

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?

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.