Question: A researcher conducts a study to determine whether there is a linear relationship between a person's height (in inches) and pulse rate (in beats per

A researcher conducts a study to determine whether there is a linear relationship between a person's height (in inches) and pulse rate (in beats per minute). The data are shown in the table below.

Heights, x 68 72 65 71 63 74 78 64 68

Pulse rate, y 91 95 87 94 84 97 100 85 92

a- Find the correlation coefficient r. Show all your steps. Do not round off.

b- Find the regression equation. Show all your steps. Do not round off.

c- Graph the regression equation.

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