The faculty and staff at Dana-Farber Cancer Institute in Boston are required to undergo a tuberculosis test each year. Use the following table to answer the questions below. If a Dana-Farber faculty or staff worker goes in to have a TB test, what is the chance of him/her getting a negative test result?

Test Result Tuberculosis Total

Yes No

Positive 4995 99,950 104,945

Negative 5 9,895,050 9,895,055

Total 5,000 9,995,000 10,000,000

Please provide answer and explanation.