The following data shows the weight, in pounds, of 5 boxes:
3,1,2,2,2
what is the value of the mean absolute deviation of the weight of the boxes, and what does it represent about the weight of a box?

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?