3.2. According to www.adherents.com, in 2006 the number of followers of the world's five largest religions were 2.1 billion for Christianity, 1.3 bil- lion for Islam, 0.9 billion for Hinduism, 0.4 billion for Confucianism, and 0.4 billion for Buddhism.

(a) Construct a relative frequency distribution.

(b) Sketch a bar graph.

(c) Can you find a mean, median, or mode for these data? If so, do so and interpret.