33
SD type Statistical calculation Example:
To calculate x
2
, x, n, x, x
n
, x
n-1
, minX, maxX of data: 7,
, 90, 77, 79 in SD mode (Fre: FF)
Quadratic Regression type Statistical Calculation Example: ABC
Company investigate the effectiveness of the advertisement
expense in coded units, the following data were obtained:
x
2
120
x
0
n
x
1.2
x
n
.21099
x
n-1
.101
(SD)
DisplayKey in operation
Advertisement expenses: X 1 0 21 19
Effectiveness: y () 9 0
Statistical Calculation Example