So that answer is in this picture that I wrote on my white board, count all of the hundreds I drew on the board.
It's B because 1 Litre is 1000 millimeteres
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,





8X5000 is 40000. There's three zeroes in5000 and no zeroes in 8, yet there are 4 zeroes in the answer. This is because you must multiply the non-zeroes, and then add the zeroes from your factors. 8 times 5 is 40, add 3 zeroes to get 40000.
Hope this helps!
Answer:
-3/4
Step-by-step explanation:
I hope this helps.