Livescribe Pulse User Manual download pdf (Page 46)

Page 46 Pulse

Smartpen User Manual

Statistical Functions

The statistical section of the calculator performs mean average and standard deviation

calculations for single variable data sets. It also performs permutation and combination

calculations.

Using Mean and Standard Deviation Calculations

To use calculate mean and standard deviations, first enter a single variable data set. Enter each

value followed by the

key. If you make an error, enter the incorrect value followed by the

key to remove it from the data set. Values not present in the data set can not be removed.

When data is present in the statistical register, a ‘Σ’ indicator appears. When data is added to or

removed from the statistical register the indicator blinks.

Once a data set is entered, you can:

• Tap

to calculate the sample standard deviation.

• Tap

to calculate the population standard deviation

• Tap

to calculate the sample mean.

You can tap

to clear the statistical register.

Using Combinations and Permutations

You can use the key to calculate the number of combinations of n things taken r at a time.

Example: To calculate the number of possible combinations of 24 things taken 6 at a time, enter

’24 6 =’. The display shows a result of 134,596.

You can use the

key to calculate the number of permutations of n things taken r at a time.

1 2 ... 41 42 43 44 45 46 47 48 49 50 51 ... 88 89

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Livescribe Pulse User Manual Page 46