How do you calculate 95% confidence in math?

Answer by  mknod (11)

To calculate confidence you should use the confidence interval. For example if you need a confidence level of 95 percent, you should be able to use a formula like x * y * 100 = 95. If you are doing an experiment you use (v_1 + v_2)/v_1 * 100

Answer by  physicist (6)

Mathematically, you can't. Confidence is purely qualitative, where mathematics in itself is purely quantitative. The only way you could make a mathematical representation of confidence would be through a statistical analysis of a psychological profile showing a 95% confidence rating on a scale invented for the psychological analysis itself.

Answer by  cwjackson (5)

You determine the appropriate probability distribution, the test statistic, and construct an interval that the test statistic will occupy with a 95% probability.

Answer by  Maria23 (144)

95% is almost a whole. This percentage would be 95 out of 100, or .95 in fraction form. A whole is only .05 away, so 95% confidence is almost all the way.