(1 point) Which of the following is/are always true about a continuous random variable? CHECK ALL THAT APPLY. '_' A. It can only take on integer values. '7' B. The probability that it has a value that falls between real values a and b is given by the area under the density function over the range (a, b). '7' C. The probability that it has a value equal to x is given by f (x) where f is the density function. '7' D. None of the above