Answer to Question #315595 in Statistics and Probability for Taj

Question

Can you make use of the normal curve to find for the probability of a large value? How?

Answer 1

All real numbers are possible. The normal distribution is unbounded. But z-tables often stop at 3 as greater values are very unlikely. In such cases it is possible to find the probability using specialized software (e.g. Mathcad, Excel etc.) or online calculators. For example the probability of a value greater than 7 is 0,00000000000127986510278788.