Athletics: Mile Run Read the Application Preview on pages 3 – 4.
a. Use the regression line y = -0.356x + 257.44 to predict the world record in the year 2020. [Hint: If x represents years after 1900, what value of x corresponds to the year 2020? The resulting y will be in seconds, and should be converted to minutes and seconds.]
b. According to this formula, when will the record be 3 minutes 30 seconds? [Hint: Set the formula equal to 210 seconds and solve. What year corresponds to this x-value?]
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