Suppose an article states that 1% of women have breast cance…

Suppose an article states that 1% of women have breast cancer.  80% of mammograms detect breast cancer when it is there.  9.6% of mammograms detect breast cancer when it’s not there.  Let C be the event that a women has breast cancer and let T be the event that the test is positive. a. Find the probability of not having cancer given a negative test result?