Teaching Haryana (HPSC) Assistant Professor Mock Test 2025 Physical Sciences Mathematical Methods of Physics
A factory produces items with a probability of 0.05 of being defective. If a sample of 20 items is selected from the production lot, what is the probability that at least one item is defective?
1
0.0499
2
0.3781
3
0.6415
4
0.9500
5
Question Not Attempted