0.0003711 in scientific notation is

Find the volume of the ellipsoid x^2+y^2+5z^2=36.

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space.b. we'll know it immediately because it will be brighter than the full moon in the sky.c. we won't know about it until 600 years from now.d. none of the above.