Use the following results from a test for marijuana​ use, which
is provided by a certain drug testing company. Among 150 subjects
with positive test​ results, there are 30 false positive​ results;
among 157 negative​ results, there are 5 false negative results. If
one of the test subjects is randomly​ selected, find the
probability of a false positive or false negative.​ (Hint:
Construct a​ table.) What does the result suggest about the​ test’s
accuracy?