It is known that 3% of people whose luggage is screened at an airport have questionable objects in their luggage. what is the probability that a string of 15 people pass through screening successfully before an individual is caught with a questionable object? what is the expected number of people to pass through before an individual is stopped?

Which of these are characteristics of a scientific law? check all that apply. it contains an explanation of facts. it states a fact about how nature works. it is based on observations of nature. it often changes over time with new experiments and technology. it explains why a group of hypotheses are related. it will most likely remain true even when scientists work with new experiments.