5. Assume that a study of 500 randomly selected school bus routes showed that 482 arrived on time. (8 points)
Is it “unusual” for a school bus to arrive late? (Hint: an event is considered “unusual” if its probability is less than or equal to 0.05)

Aswimming pool is a rectangle with semicircles on the end. the rectangle is 12 meters wide and 30 meters long. the diameter and width of the swimming pool are equal. sketch and label an overhead diagram of the swimming pool. find the area of the swimming pool floor.

Standard deviation of 19,29,21,22,23

Tan198=asin164=? how to solve this? ?