A Group of Screwdrivers Produced in a Day at a Particular

Multiple Choice

A group of screwdrivers produced in a day at a particular factory has a defect rate of 0.7%. Suppose a quality inspector randomly inspects 500 screwdrivers. Complete the following statement: The quality inspector should expect ____defective screwdrivers, with an error of ____.

A) 35; 0.4%
B) 3.5; 0.4%
C) 1; 4.0%
D) 1; 0.4%