1. What is the median value of each data set? (Be clear of what your answer is for Brand X and Brand Y) 2. Compare the median values of the data sets by stating which one is greater and what their difference is. What does this comparison tell you in terms of the situation the data represent? 3. What is the range in battery life for Brand Y? What does this tell you about this brand? 4. If Mary bought 12 of the Brand X batteries, how many of them lasted less than 15 hours? (Please show how you calculated this to get your answer)
Call the radius r and the height of the cone h. The formula for the volume of a cone is r^2*h*pi/3, and the formula for the volume of a sphere is 4r^3/3, so half of a sphere has volume 2r^3/3. Adding these, our answer is:
