Answer:
The answer is [tex]5/6[/tex]
Explanation:
This is because, if it takes 2 hours to detect 2 defects, In 24 hours, the total defect to be detected is 24.
The probabilty of less than (Total) of 4 defect =
1 - probability of it been 4 (in an entire shift)
probability of been 4 = [tex]no of defect / total defect[/tex] = [tex]4/24[/tex]
Therefore,
probability of less than 4 = [tex]1- (4/24)[/tex] = [tex]5/6[/tex]
