You are a sports agent's assistant. You are preparing a report on contracts you have obtained for the agent's clients. You recently negotiated the following annual contracts: $2.8 million, $18.9 million, $1.5 million, $1.2 million, $1.5 million, and $3.5 million per year. The standard deviation of the data is 6.3, and the range is 17.7. Which measure of center most appropriate, and what is the value of the measure of center? O median; $1.35 million O mode, $1.5 million O median; $2.15 million O mean; $4.9 million mean; $5.58 million​