Question $2$

The table below presents bid$-$ask quotes for Swiss Francs $($SF$)$ from several currency dealers around the world.

$\backslash$table$[[$Currency Dealer in$,$Zurich,Hong Kong,London,New York$],[$Bid$/$Ask Quotes for SF$,$$$0\mathrm{.}7460-71,$$$0\mathrm{.}7471-74,$$$0\mathrm{.}7469-76,$$$0\mathrm{.}7464-70$