A sample of five Fortune 500 companies showed the following revenues ($ millions); 7505.0, 2904.7, 7208.4, 6819.0, and 195000.0. Based on this information, which of the following statement is correct?
a. An estimate average revenue all Fortune 500 companies is 8787.42 ($ millions).
b. The average revenue for all Fortune 500 companies is 8787.42 ($ million).
c. Over half of all Fortune 500 companies earn at least 7208.4 ($ millions) in revenues.
d. If five other Fortune 500 companies were chosen, the average revenue would be 8787.42 ($ millions).