Stat > Calculators

- Select the name of the desired distribution from the menu listing (e.g., Binomial, Normal, etc.).
- In the first line below the plot in the calculator window,
specify the distribution parameters. As examples, with
the normal distribution, specify the mean and standard
deviation; with the binomial distribution, specify
**n**and**p**. - In the second line below the plot, specify the direction of the
desired probability.
- To compute a probability, enter a value to the right of the direction selector and leave the remaining field empty (e.g., P(X < 3) = ____).
- To determine the point that will provide a specified probability, enter the probability to the right of the equal sign and leave the other field empty (e.g., P(X < ____) = 0.25). This option is available only for continuous distributions.

- Click
**Compute!**to fill in the empty fields and to update the graph of the distribution.

Finding a binomial probability

Finding a standard normal probability

Finding a t(8) quantile

Always Learning
Pearson