Question

A researcher wants to test a new drug in its ability to decrease the pulse rate for patients. The data are shown below for 6 patients

Help to create a scatterplot of the data

Patient	Dosage	Decrease in Pulse Rate
Amy	2	15
Betsy	1.5	9
Chris	3	18
Dorothy	2.5	16
Ethel	4	23
Frank	3	20

Can you please explain how to create a scatterplot of the data using the example above

Answer 1

Define , X : Dosage of the drug prescribed to each patient .

Y : Decrease in pulse rates .

Now , in order to draw the scatter plot , the points for the random variable X is plotted on the X-axis of the rectangular cartesian coordinate . The points for the random variable Y corresponding to each value of the variable X is then plotted in the graph for that value of Y given in the Y-axis . For the example given here , the scatter plot is given below :