1.) f(x) is the probability density function for a continuous random variable X.

Group of answer choices

True

False

2.) One of the requirements of a probability density function f(x) is that its values must always be between 0 and 1.

Group of answer choices

True

False

3.) Suppose X = time waiting for a cab, where you will only wait up to 10 minutes. Suppose f(x) = 3/1000 x^2. What is the probability you wait less than 7 minutes for the cab? Choose the CLOSEST ANSWER.

Group of answer choices

.14

.54

.34

.74