A negative result means the test did not detect elevated levels of altered DNA and/or hemoglobin that could be caused by cancer or precancer in the colon or rectum. The test can also have a negative result that is incorrect (false negative). This means the test result missed a potential cancer or precancer.For that reason, it is recommended that you schedule regular screenings.Your doctor may recommend an alternative screening method. Talk to your doctor about your test result.he test can also have a negative result that is incorrect (false negative). This means the test result missed a potential cancer or precancer. For that reason, it is recommended that you schedule regular screenings. Your doctor may recommend an alternative screening method. Talk to your doctor about your test result.
The new distribution of the normal random variable Z with mean `0` and variance `1` (or standard deviation `1`) is called a standard normal distribution. Standardizing the distribution like this makes it much easier to calculate probabilities.
3. Create the curve formula. The formula for the normal distribution probability density function is as follows (reference: Wikipedia) Where sigma (s) is the standard deviation, mu (m) is the mean and x is the profit bin as calculated above. Translating this into Tableau, we get a calculated field as follows.