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7.175 (Average for data X )
0.973579551 (Standard deviation for data X )
0.91070028 (Standard deviation of the population for data X )
9.875 (Average for data Y)
3.440826313 (Standard deviation for data Y)
3.218598297 (Standard deviation of the population for data Y)
8 (Total count of data)
57.4 (Sum of data X )
418.48 (Data X raised to the second power)
544.1 (Sum of the product of data X and data Y)
79 (Sum of data Y)
863 (Data Y raised to the second power)
<Let’s check the results based on the previous data.>
C alculates the sum of the product for sample data X and sample data Y.
C alculates the sum of the data (sample data Y).
C alculates the sum of the data (sample data Y) raised to the second power.
C alculates the average value of the data (sample data Y).
C alculates the standard deviation of a data population (sample data Y).
C alculates the standard deviation for the data (sample data Y).
In addition to the 1-variable statistic keys, the following keys have been added for calcu-
lating 2-variable statistics.
N OT E :
The codes for basic statistical quantities of sample data X and their meanings
are the same as those for single-variable statistical calculations.
“ A N S ” K E Y S F O R 2 -V A R I A B L E S T AT I S T I C S