PL 4. Researchers weighed a sample of river otters and a sample of sea otters. These dot plots show the results (rounded to the nearest pound).

a) Identify the shape of each dot plot. (2 points: 1 point for each dot plot)

River otters: Symmetric bell shaped

Sea otters: negatively skewed

b) Which dot plot has a larger center? What does this mean in terms of the otters? (2 points: 1 point for each question)

c) Identify any outliers. What do you think the outliers represent? (2 points: 1 point for identifying, 1 for explanation)

d) Which dot plot has a larger spread? (1 point)

e) How do the outliers affect the spread of the dot plot? (1 point)