See below a histogram of the ages of n=279 patients being treated for back pain. Estimate the mean and standard deviation of the ages of back pain patients. Assume the graph is close enough to bell-shaped to use the 95% rule

Apyramid fits exactly inside a cube. the cube and the pyramid share the same square base, and they are both exactly the same height. the volume of the cube is 66 cubic inches. what is the volume of the pyramid? explain your answer. answer asap