6) Studies have shown that people who suffer sudden cardiac arrest have a better chance of survival if a defibrillator shock is administered very soon after cardiac arrest. The accompanying data give y = survival rate (percent) and x = mean call-to-shock time (minutes) for a cardiac rehabilitation center (in which cardiac arrests occurred while victims were hospitalized and so the call-to-shock time tended to be short) and for four communities of different sizes: For this problem use your calculators. Mean call-to-shock time X 2 6 7 Survival rate y 90 45 30 a) (2pts) Calculate the correlation coefficient 95 12 2 b) (2pts) Describe the relationship (strength/direction) using the r value for this specific data. (use the words "shock time and survival rates") in your answer. c) (2pts) Calculate the Coefficient of determination

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