# Discrete Random Variables

• Jan 29th 2008, 10:32 PM
Breeegzkm
Discrete Random Variables
"Let Y denote the duration, to the nearest minute, of a total solar eclipse. Is Y a discrete random variable?"

This is one of my homework problems. There is no list of values to choose from. Can time be a discrete random variable and can it be discrete random variable if there are no values to choose from? :confused:

Thanks!
• Jan 29th 2008, 11:48 PM
CaptainBlack
Quote:

Originally Posted by Breeegzkm
"Let Y denote the duration, to the nearest minute, of a total solar eclipse. Is Y a discrete random variable?"

The duration of a total eclipse can be calculated to better precision
than 1 minute for any location on the path of totality. So no.

But if you don't know where you are on the path it could well be regarded
as a RV. So the answer is yes.

Quote:

This is one of my homework problems. There is no list of values to choose from. Can time be a discrete random variable and can it be discrete random variable if there are no values to choose from? :confused:

Thanks!
Life does not consist of a sequence of multiple choice questions.

RonL