Exercise $3-35($Algo$)($LO$3-3)$

The annual report of Dennis Industries cited these primary earnings per common share for the past $5$ years: $$2\mathrm{.}46,$ $$1\mathrm{.}07,$ $$2\mathrm{.}1,$ $$4\mathrm{.}22,$ and $$7\mathrm{.}72.$ Assume these are population values.

Required:

What is the arithmetic mean primary earnings per share of common stock?

Note: Round your answer to $2$ decimal places.

What is the variance?

Note: Do not round intermediate calculations. Round your answer to $2$ decimal places.