73
“ANS” KEYS FOR 2-VARIABLE STATISTICS
In addition to the
1
-variable statistic keys, the following keys have been added for calcu-
lating 2-variable statistics.
NOTE:
The codes for basic statistical quantities of sample data
x
and their meanings
are the same as those for single-variable statistical calculations.
Let’ s check the results based on the previous data.
Calculates the sum of the product for sample data
x
and sample data
y
.
Calculates the sum of the data (sample data
y
).
Calculates the sum of the data (sample data
y
) raised to the second power.
Calculates the average value of the data (sample data
y
).
Calculates the standard deviation for the data (sample data
y
).
Calculates the standard deviation of a data population (sample data
y
).
7.
1
75
(Average for data
x
)
0.97357955
1
(Standard deviation for data
x
)
0.9
1
070028 (Standard deviation of the population for data
x
)
9.875
(Average for data
y
)
3.4408263
1
3 (Standard deviation for data
y
)
3.2
1
8598297 (Standard deviation of the population for data
y
)
8
(Total count of data)
57.4
(Sum of data
x
)
4
1
8.48
(Sum of 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
(Sum of data
y
raised to the second power)
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