Question

Problem 1: Seastar wasting disease (15 pts) Seastar wasting disease recently decimated seastar populations on the Pacific Coast, and is possibly moving to the Atlantic Coast. The disease causes seastars to "melt" and eventually their arms fall off. The California Department of Environmental Protection recently conducted a census of two species of sea stars in Bodega Harbor (Pisaster and Asteria). Each individual was characterized as "diseased" or "normal". Here is the data for the number of each species found in each category ## Normal ## Diseased 423 100 Pisaster Asteria 132 321 a) Draw a mosiac plot that emphasizes the proportion of individuals that are diseased vs. normal for each species. (Hint: Your plot should visualize what proportion of Pisaster are diseased and what proportion of Asteria are diseased). Describe why you think your plot emphasizes this proportion. 6 points

Answer 1