Answer:
A
I Had that question before
i’m pretty sure the answer is 3
21 divided by 7 equals 3
18 plus 12 divided by 2 = thats how u get the answer
Answer:
a. 0.047
b. Unlikely.
Step-by-step explanation:
a. The probability of a test result being wrong for a person not using mrijuana = 8 / 170 = 0.047.
b. As the probability for a wrong result is < 0.05 we can say that the test is unlikely to be wrong.