Normal Distribution Probability Calculator
Given the mean and standard deviation, find P(X < b), P(X > a) or P(a < X < b) with z-scores.
Step-by-step guides
- Given the Mean and Standard Deviation, How Do You Find a Probability?Convert values to z-scores and use the standard normal table to find P(X < b), P(X > a) and P(a < X < b) from a mean and standard deviation, with examples.