The probabilities of a test are represented by i for infected; u, uninfected; d, infection detected; and n, no infection detected. what is the symbolic way to represent the probability of a true positive? p(i⋂d) p(i⋂d)p(d) p(u⋂n)p(n) p(i⋃d)

The symbolic way to represent the probability of a true positive is:

               P(I∩D)

Step-by-step explanation:

The representation is given as follows:

I for infected; U, uninfected; D, infection detected; and N, no infection detected.

We are asked to find which expression represents the probability of a true positive.

i.e we are asked to find the probability that a person who is infected is also detected.

Let P denote the probability of an event.

        Hence, the expression is:

           P(I∩D)