Determine whether the random variable is discrete or continu

Determine whether the random variable is discrete or continuous. In each case, state the possible values of random variable.

(a) The number of hits to a Web site in a day.

(b) The time required to download a file from the Internet.

Solution

A.

Discrete. It cannot take decimal/fraction values.

It can only take integer values like 0, 1, 2, 3...100000, etc.

B.

Continuous. It can take all values t > 0 s.

Ex. It can take 0.05 s or 0.3762812739 s, etc.