A company manufactures microchips. Each chip can have two defects denoted A and B.
A statistical study shows that $2.8\%$ of chips have defect A, $2.2\%$ of chips have defect B, and fortunately, $95.4\%$ of chips have neither of the two defects.
The probability that a randomly selected chip has both defects is: a. 0.05 b. 0.004 c. 0.046 d. We cannot know