A professor collected data on the number of absences in an introductory statistics class of 100 students over the course of a semester.The data are summarized below. 
What is the weighted mean number of absences per semester?
Definitions:
Strike Price
The specified price at which the buyer of an option can buy (for a call option) or sell (for a put option) the underlying asset.
Net Profit
The amount of income that remains after all operating expenses, taxes, and costs have been subtracted from total revenue.
Call Contracts
Financial derivatives that give the holder the right, but not the obligation, to buy an asset at a set price within a specific time period.
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