Answer:
The line will cross through - 3, - 6 and 2
3.124
3 + 0.100+ 0.020 + 0.004
Answer:
Hence, the probability of a Negative test is
.
Step-by-step explanation:
(a)
Let
Drug user and
Test positive
Probability of drug users 


(b)
Find the Probability of a Negative test,




