Calculators Starting With Z

2 calculators whose name begins with “Z”, all of them in Statistics & Probability. Every one shows the formula it uses, works a full example by hand, and explains how to read the answer — so you can check the result rather than take it on trust.

They are grouped below by subject. If you are not sure of the name, the full A–Z index lists every calculator on the site, and each subject hub explains how its calculators relate to one another.

0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Statistics & Probability 2 calculators

Z Critical Value Calculator (Inverse Normal)Inverse standard normal (probit) functionThis calculator inverts the normal distribution: instead of turning a cut-off into a probability, it turns a probability into a…
Z-Score CalculatorStandard normal distribution (standardisation)A z-score says how many standard deviations a value sits above or below the mean. Enter the raw value, the mean and the…