Design of an open/closed interval selector

1. What is open interval and close interval?
2. How do you write an open interval?
3. What is an open interval in statistics?

What is open interval and close interval?

An interval is called open if it doesn't include the endpoints. It is denoted by ( ). For instance, (1, 2) means greater than 1 and less than 2. A closed interval is one which includes all the limit points.

How do you write an open interval?

An open interval does not include its endpoints, and is indicated with parentheses. For example, (0,1) means greater than 0 and less than 1. This means (0,1) = x | 0 < x < 1. A closed interval is an interval which includes all its limit points, and is denoted with square brackets.

What is an open interval in statistics?

An open interval is an interval that does not include its end points.