With Computer Security Always a Hot-Button Issue, Demand Is Growing

question 180

Multiple Choice

With computer security always a hot-button issue, demand is growing for technology that authenticates and authorizes computer users. The following table gives the authentication software sales (in billions of dollars) , including projections, from 1999 through 2004. (Here, x = 0 represents 1999.)
Find an equation of the least-squares line for these data. Please round the coefficients in your equation to three decimal places. Use the result to estimate the sales for 2006, assuming the projection is accurate.

• A) y = 0.759x + 2.273; $7.586 billion
• B) y = 0.749x + 2.262; $7.482 billion
• C) y = 0.759x + 2.273; $7.549 billion
• D) y = 0.749x + 2.262; $7.505 billion

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