Identify from the information below whether X is a discrete or continuous random variable. a. Let X

Question:

Identify from the information below whether X is a discrete or continuous random variable.
a. Let X be a random variable that takes values on the set {3,4,5,6,7}
b. Let X be the number of defective light bulbs in a shipment.
c. Let X be a random variable that takes values on the real interval [3,7]