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)

where is the page?

step-by-step explanation:

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.