800 because the thing is 800
A true positive is when a person who is infected receives a positive test (someone whose test comes back positive but who doesn't really have the infection would be called a false positive).
A symbolic way to represent the probability of a true positive would be the infection detected divided by the total of all the options:
D/(I + U + D + N)
Hey there!
c² = 5c
Subtract 5c from both sides:
c² - 5c = 5c - 5c
Simplify :
c² - 5c = 0
c = 5 , c = 0