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Regression coefficient A
Regression coefficient B
Correlation coefficient r
Estimated value of x
Estimated value of y
Regression coefficient A
Regression coefficient B
Regression coefficient C
Estimated value of x1
Estimated value of x2
Estimated value of y
Reg
Reg
A
B
r
x
y
A
B
C
x1
x2
y
For
non-Quad
Reg
For Quad
Reg only
STAT
sub-menu
STAT Type
Symbol
OperationValue
SD type Statistical calculation Example:
To calculate ∑x
2
, ∑x, n, x, x
n
, x
n-1
, minX, maxX of data: 75,
85, 90, 77, 79 in SD mode (Freq: OFF) ......
Quadratic Regression type Statistical Calculation Example:
ABC Company investigate the effectiveness of the advertisement
expense in coded units, the following data was obtained:
Advertisement expenses: X 18 35 40 21 19
Effectiveness: y (%) 38 54 59 40 38
Statistical Calculation Example
Please use the regression to estimate the effectiveness
(estimate the value of y) if the advertisement expenses X=30,
and estimate the advertisement expenses level (estimate the
value of X
1
, X
2
) for effectiveness y = 50. ......
EX #41
EX #42
Distribution Calculations
After sample data is entered in either Statistic (SD) or Regression
(REG) mode, you can perform the normal distribution or
probability distribution calculation such as P(t), Q(t) and R(t) in
which t is the variate of the probabilistic experiment.
Random variable
Mean of sample
Standard deviation
Press to display the distribution calculations screen.
Press , , or for the corresponding calculations.
1: P( 2: Q(
3: R( 4: t
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