Which of the following statements is correct?

a.For a discrete random variable, the probability function f(x) does not directly provide probabilities.

b.For a continuous random variable, the probability density function f(x) provides the probability that the random variable assumes a particular value.

c.The area under the graph of the probability density function f(x), corresponding to a given interval, provides the probability that the continuous random variable x assumes a value in that interval.

d.All of the above.