Explore the relationship between the selling prices and the appraised values of the 150 homes in the file P02_07.XLS by generating a scatterplot. a. Is there evidence of a linear relationship between the selling price and appraised value in this case? If so, indicate whether the relationship is a positive or negative one. b. What is the correlation coefficient between the selling price and the appraised value?

What is the quadric regression equation that fits these data

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?