Starting or GETting Another List

When you press , the SUM list that appears is the last one used.

To start a new list or switch to a different one, the current list must be named or cleared. If it is named, then:

1.Press . The GET menu contains a menu label for each named list plus .

2.Press the key for the desired list. ( brings up a new, empty list.)

Clearing a SUM List and Its Name

To clear a list’s numbers and name:

1.Display the list you want to clear, then press @c . This removes the numbers.

2.If the list is named, you’ll see     Press to remove the name. Press to retain the name with an

empty list.

To remove just one value at a time from a list, use .

Doing Statistical Calculations (CALC)

Once you have entered a list of numbers, you can calculate the following values.

„For one variable: the total, mean, median, standard deviation, range, minimum, and maximum. You can also sort the numbers in order of increasing value.

„For two variables: x-estimates and y-estimates (this is also called forecasting), the correlation coefficient for different types of curves (this is curve-fitting), the slope and y-intercept of the line, and summation statistics. You can also find the weighted mean and the grouped standard deviation.

10: Running Total and Statistics 127

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