Iris Petals Allometry is the area of biology that studies how different parts of a body grow in relation to other parts. The figure below shows a scatterplot comparing the length and width of petals of irises. 25 20 15 Petal width (mm) 10 - 5 20 30 40 50 60 70 Petal length (mm) Iris petals 1R.A. Fishers's iris data downloaded from http://lib.stat.cmu.edu/DASL/Datafiles/Fisher'slrises.html. (a) Does there appear to be a positive or negative association between petal width and petal length? Positive O Negative eTextbook and Media (b) Estimate the correlation. Or = 1 Or = 0.8 Or = 0.1 Or = -0.1 Or = - 0.8 Or= -1 eTextbook and Media (c) Estimate the width of the petal which has a length of 30 mm. Round your answer to the nearest integer. petal width i mm eTextbook and Media (d) There are at least two different types of irises included in the study. Name one difference between the types that the scatterplot makes obvious. One type of petal is larger than the other. The two types of petals are different colors. The petal length is positively associated with the petal width. One type of petal is more smooth than the other