80 volunteers take a meningitis test to help doctors see how accurate this test is at identifying whether someone has meningitis or not. A positive result means the test has identified you as having meningitis.
Of the volunteers, only 16 people have meningitis.
The results show 2 people who have meningitis gets a negative result and 2 people who don't have meningitis get a positive result.
What was the accuracy of the test?