Estimating the rhino population. The International Rhino Foundation estimates that there are 28,933 rhinoceroses living in the wild in Africa and Asia. A breakdown of the number of rhinos of each species is reported in the accompanying table:

Rhino Species Population Estimate African Black 5,055 African White 20,405

(Asian) Sumatran 100

(Asian) Javan 40

(Asian) Greater One-Horned 3,333 Total 28,933 Source: International Rhino Foundation, 2014.

a. Construct a relative frequency table for the data.

b. Display the relative frequencies in a bar graph.

c. What proportion of the 28,933 rhinos are African rhinos?

Asian?