Identify the given random variable as being discrete or cont

Identify the given random variable as being discrete or continuous

(a) The amount of water flowing through the Hoover Dam in a day.

(b). The number of words spelled correctly by a student on a spelling text.

(c). The score on the SAT.

(d). The distance traveled by a school bus each day.

Solution

(a)

It is continuos variables because amount of water flowing through the Hoover Dam in a day can be any quantity.

(b)

It is discrete variable becuase it can take specific values like 10, 15 etc.

(c)

SAT score can be any specific score so it is a discrete variable.

(d)

It is a continuos variable.