Helll 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?
a.
`"p"("i" nnn "d")`

b.
`("p"("i" nnn "d"))/("p"("d"))`

c.
`("p"("u" nnn "n"))/("p"("n"))`

d.
`"p"("i" uuu "d")`

P(I⋂D)

Step-by-step explanation:

The symbolic way to represent the probability of a true positive is P(I⋂D).

We know that I stands for Infected, U stands for Uninfected, D for Infection detected, N for infection no detected.

Then, a true positive will be given by the intersection of Infected and Infection Detected.

A) P ( I ∩ D )

Step-by-step explanation:

To find a true positive, we need to find the chance of two events happening: an infection is detected and the person has said infection. That means that it is when both I and D are true.

When in a set, two events happen simultaneously, it is shown with a ∩ (intersection) symbol.

That means that a true positive is shown as P (I ∩ D)

i think is 3 and 6. this took me 10 min to think.hope to and hope that my answer is brainliest.(follow me )