E-49
Distr Sub-menu (
1
1
(STAT)
7
(Distr))
1
P(
2
Q(
3
R(
4
'
t
This menu can be used to calculate the probability of standard normal
distribution. Normalized variate
t
is calculated with the expression
shown below, using the mean value (
o
) and population standard
deviation value (
x
σ
n
) obtained from the data input on the STAT editor
screen.
Standard Normal Distribution
Appendix
Single-variable Statistical Calculation
<#053> Select single-variable (1-VAR) and input the following data:
{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
(FREQ: ON)
<#054> Edit the data to the following, using insert and delete:
{0, 1, 2, 3, 4, 5, 6, 7, 9, 10}
(FREQ: ON)
<#055> Edit the FREQ data to the following:
{1, 2, 1, 2, 2, 2, 3, 4, 2, 1}
(FREQ: ON)
• Examples <#056> through <#059> all use the same data as
Example <#055>.
<#056> Calculate sum of squares of the sample data and sum of
the sample data.
<#057> Calculate number of samples, mean, and population
standard deviation.
<#058> Calculate minimum value and maximum value.
<#059> Performing standard normal distribution approximation on
the input sample data (from Example <#055>) produces
the probabilities shown below.
Distribution probability that is a value less than the
normalized variate when the sample value is 3 (P value for
normalized variate when X = 3)
Distribution probability that is a value greater than the
normalized variate when the sample value is 7 (R value for
normalized variate when X = 7)
P (
t
)
Q (
t
)
R (
t
)
0
t
0
t
0
t
