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.
Answer:
Step-by-step explanation:
the formula for circumference of a circle is 2 x pi x r(radius).
The 9 stands for hundredths
For number 12 the answer is 15.36
