The ages of a sample of Canadian tourists flying from Toronto to Hong Kong were 28 25 60 43 51 31 66 54 26 and 39 "The ages of a sample of Canadian tourists flying from Toronto to Hong Kong were 28, 25, 60, 43, 51, 31, 66, 54, 26, and 39. Compute the standard deviation. (Round your answer to 2 decimal places.)

a triangular prism is a 3 dimensional shape composed of triangles and rectangles. it is made from two triangular bases and three rectangular sides.  

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)

answer: your answer is a