The weights of bags of pet food are distributed normally about the mean, 50 lb. the standard deviation is 0.2 lb. in a group of 20 bags, about how many would you expect to be within one standard deviation from the mean?

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?

What is the distance from zero if a quadratic function has a line of symmetry at x=-3 and a zero at 4

The function y= x - 4x+ 5 approximates the height, y, of a bird, and its horizontal distance, x, as it flies from one fence post to another. all distances are in feet. complete the square to find and interpret the extreme value (vertex). select two answers: one extreme value and one interpretation.