A doctor has prescribed a medicine (event) to a patient with the probability that the medicine will improve the condition of the patient by .72 (72%). What is the probability that the medicine (event) will not be effective on the patient? Show your calculation and your result below:

A1: Calculation: (in decimal point, show the calculation).

P = 1- 0.72 A2: Result: in decimal point (and in normal language % in parenthesis).

= 0.28 (28%) which is the probability/percentage that the medicine (event) will not be effective on the patient