A cylindrical cannister contains three tennis balls. Assume the tennis balls touch the sides of the canister and the top and bottom with no gaps. How much empty space is in a tennis ball canister?  The diameter of one tennis ball is about 6.75 cm.

Amajor grocery store chain is trying to cut down on waste. currently, they get peaches from two different distributors, whole fruits and green grocer. out of a two large shipments, the manager randomly selects items from both suppliers and counts the number of items that are not sell-able due to bruising, disease or other problems. she then makes a confidence interval. is there a significant difference in the quality of the peaches between the two distributors? 95% ci for pw-pg: (0.064, 0.156)