Standard normal probability

Fig 1: Excel Web App #1: standard normal probability

The trapezoid rule

$$\int_a^b f(x)~dx = \sum\limits_{i=1}^{n-1} \frac{f(x_{i+1})+f(x_i)}{2}\Delta x_i $$

  • This example was developed in Excel 2013 Pro 64 bit.
  • Revised: