オンライン計算機

Measure how spread out a dataset is with variance and standard deviation.

Measure average spread from the mean using mean absolute deviation.

Measure a test score percentage and incorrect answers from the number of correct responses.

Estimate a weighted semester grade from assignment, midterm, and final exam scores.

Measure attendance percentage and missed sessions from total scheduled classes and attended classes.

Measure engagement rate by comparing total interactions with the number of people reached.

Measure customer churn as the percentage of starting customers lost over a period.

Measure revenue change between two periods as both a raw amount and a percentage.

Measure the percentage of carts that were started but not completed.

Measure average order value by dividing total revenue by total orders.