An aerabk exercise instructor remembars the data givan in the follawing table, which shows the recommanded maximum exercise haart rates for individuals of the given ages. (A graphing calculator is...

Extracted text: An aerabk exercise instructor remembars the data givan in the follawing table, which shows the recommanded maximum exercise haart rates for individuals of the given ages. (A graphing calculator is recommended.) Age (x years) 20 40 60 Maximum heart rate 172 155 138 (y bente per minute) (a) Find the lincar corelation coefficient for the deta. (Rcund your answer to two decimal places.) (b) What is the signiticance of the value found in part (a)? O The slope of the regression is about half of what the expected value is. O The graph of the regression points passes through nene of the data points. * The graph of the regression points passes through all three data peints. O One of the data points is the y-intercept. O The linear correlation cooficient should always be positive. (c) Find the equetion of the leest-squeres regression line. (Round your answers to two decimal pleces.) (d) Use the equation of the least-squares line from part (c] te predict the maximum cxercise heart rate fer a person who is 74. (Round your answer to the nearest whole number.) beats per minute Taking Alicis San Dinga, Ma (e) Is the procedure in part (d) an exemple of interpolation or extrapolation? O interpolation O extrapolation