26
14
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 #45
EX #46
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
Apps
Summary of Contents for F-789SGA
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