The requirement of probable cause works in tandem with the warrant requirement. A warrant is a document that allows police to search a person, search a person's property, or arrest a person. A judicial magistrate or judge must approve and sign a warrant before officers may act on it.robable cause must exist for a law enforcement officer to make an arrest without a warrant, search without a warrant, or seize property in the belief the items were evidence of a crime.
For the purpose of surveys, one type of question asked is the closed-ended (also closed or dichotomous) question, usually requiring a yes/no answer or the choice of an option(s) from a list (see also multiple choice).
You have to think about each question. Most GRE questions are about equally likely outcomes. The probability is the number of outcomes favourable to the question, divided by the total number of possible outcomes. In your question: there are 18 marbles, so there are 18 possible outcomes.For (a) Favourable outcomes are black or red.ou have to think about each question. Most GRE questions are about equally likely outcomes. The probability is the number of outcomes favourable to the question, divided by the total number of possible outcomes. In your question: there are 18 marbles, so there are 18 possible outcomes.