discussion 1.2 and 2

Since there is nothing that is certain in life, the only thing that is possible is to minimize the degree of uncertainty. For a car to start, the degree of certainty should be approximately 90%. This is to mean that it is almost certain that a car will start. The level of certainty for a paycheck should be approximately 95% which means that there is a high probability of the paycheck arriving in time. However, in the medical set up, a small mistake in medication can lead to the death of a patient. Since there is no certainty then the acceptable confidence levels should be 99%.