The table below shows the size of nine families selected at random from two neighborhoods in a large city: family size (in number of people) neighborhood a 4 4 5 5 5 5 5 5 6 neighborhood b 6 5 5 4 4 3 4 2 4 which neighborhood appears to have a bigger family size? explain your answer using two or three sentences. make sure to use facts to support your answer

Andy wants to find the distance d across a river. he located points as shown in the figure, then use similar triangles to find that d = 223.5 feet. how can you tell without calculating that he must be wrong? tell what you think he did wrong and correct his error. round your answer to the nearest tenth if necessary. andy must have used the wrong . the distance d is actually feet.