Total numbers of elementary events are: 20
Let E be the event of drawing defective bulb
The number of defective bulbs in a lot = 4
Then, the favourable outcome =4
∴ P (defective bulb) = P (E) = 4/20 = 1/5
Rate this question :
How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
view all courses
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
RELATED QUESTIONS :
A child has a dieRS Aggarwal - Mathematics