Statistical Calculation Examples - Casio fx-5800P User Manual

For more information about this type of regression calculation:
Power Regression
Inverse Regression

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.
Determine the mean and standard deviation of the sample
data.
Assuming that the population distribution is a normal
distribution, determine the distribution probability of students
with pulse rates of 70 of greater.
Operation Procedure
Select the SD Mode:
Select FreqOn for the statistical frequency setting:
Input the pulse rate data into the X-column:
55
67
Input the number of students data into the FREQ-column:
9
(1) Mean and Standard Deviation
Obtain the mean:
Obtain the sample standard deviation:
(2) Distribution Probability
3 (SD)
5 (STAT) 1 (FreqOn)
(SETUP)
57 59
69 71
1 2 2
8 6 4
7 (STAT) 2 (VAR) 2 ( )
7 (STAT) 2 (VAR) 4 (
7 (STAT) 3 (DISTR) 3 (R() 70
7 (STAT) 3 (DISTR) 4 ( '
61 63
73 75
5 8
3 2
1 ( / COMP)
σ
x
n
) )
t
E-84
Go here:
<#07>
<#08>
Pulse Rate
54 – 56
56 – 58
58 – 60
60 – 62
62 – 64
64 – 66
66 – 68
68 – 70
70 – 72
72 – 74
74 – 76
65
)
–1
Students
1
2
2
5
8
9
8
6
4
3
2