You can also use the Calculator to calculate these statistics and display the results in the worksheet.
A running total of the number of observations in successive categories.
|Grade Level||Count||Cumulative N||Calculation|
|2||58||107||49 + 58|
|3||52||159||49 + 58 + 52|
|4||60||219||49 + 58 + 52 + 60|
|5||48||267||49 + 58 + 52 + 60 + 48|
|6||55||322||49 + 58 + 52 + 60 + 48 + 55|
Maximum refers to the highest value; minimum refers to the lowest. In Minitab, you can use descriptive statistics to display the highest and lowest values in a column (choose MAXIMUM or MINIMUM in the Calculator to identify an extreme value that could be an outlier or a data entry mistake.). You can also use
The range is the difference between the largest and smallest data values. The range represents the smallest interval that contains all the data values. In Minitab, you can use descriptive statistics to calculate the range of numbers in a column (choose) and display the result in the Session window.
You can also use RANGE in the Calculator to calculate the difference between the largest and smallest numbers in a column and store the result in the worksheet. Use RRANGE to calculate the range for each row in a set of columns.
In control charts and capability analyses, you can use the average range across all subgroups (Rbar) to estimate your process standard deviation.
The sum is the total of all of the data values. In Minitab, you can use descriptive statistics to calculate the sum of numbers in a column (choose) and display the result in the Session window.
You can also use SUM in the Calculator to add numbers in a column and display the result in the worksheet. Use RSUM to calculate the sum for each row in a set of columns.