Question

Fill in the blanks with the correct words:

An event that has probability O is said to be
An event that has probability 1 is said to be

Answer 1

Impossible; certain to happen

Explanation:

Probability = 0 applies to an event which cannot happen. Example: roll a die and get a 7.

Probability = 1 applies to an even which is certain to occur. Example: roll a die and get a number less than 8.