Sure Event

Q.

Data presented in ascending or descending order is called ____

1. Event description

2. Previously collected data

3. Previously collected data relevant to the event

4. Prediction based on astrology

Q. Complete the statements:
The probability of an event that is certain to happen is ___ .
Such an event is called ___

Q.

The probability of an event E that will definitely happen is 1. Such an event is called a ___ event.