Casio fx-5800P - Manual (Page 85)

E-84
For more information about this type of regression calculation: Go here:
Power Regression <#07>
Inverse Regression <#08>
k
Statistical Calculation Examples
This section provides some actual examples of statistical calculation examples as they are
performed on your calculator.
Example 1: The nearby table shows the pulse rates of 50
students who attend a high school for boys that
has a total enrollment of 1,000 students.
1 Determine the mean and standard deviation of the sample
data.
2 Assuming that the population distribution is a normal
distribution, determine the distribution probability of students
with pulse rates of 70 of greater.
Pulse Rate Students
54 – 56 1
56 – 58 2
58 – 60 2
60 – 62 5
62 – 64 8
64 – 66 9
66 – 68 8
68 – 70 6
70 – 72 4
72 – 74 3
74 – 76 2
Operation Procedure
Select the SD Mode:
N3(SD)
Select FreqOn for the statistical frequency setting:
1N(SETUP)c5(STAT) 1(FreqOn)
Input the pulse rate data into the X-column:
55E57E59E61E63E65E
67E69E71E73E75E
Input the number of students data into the FREQ-column:
ce1 E2E2E5E8E
9E8E6E4E3E2E
(1) Mean and Standard Deviation
Obtain the mean:
z1(/COMP)
z7(STAT) 2(VAR) 2(o)E
Obtain the sample standard deviation:
z7(STAT) 2(VAR) 4( x σ
n –1
)
E
(2) Distribution Probability
z7(STAT) 3(DISTR)3(R()70
z7(STAT) 3(DISTR)4(' t )
)E