Casio Algebra FX 2.0 User Manual page 276

k Probability Distribution Calculation
You can calculate probability distributions for single-variable statistics with the RUN
Mode.
Press K6(g)1(PROB) to display a function menu, which contains the following items.
• {P(}/{Q(}/{R(} ... obtains probability {P(
t
(} ... {obtains normalized variate
• {
t
• Probability P(
following formulas.
t
P ( )
Example The following table shows the results of measurements of the height
of 20 college students. Determine what percentage of the students fall
in the range 160.5 cm to 175.5 cm. Also, in what percentile does the
175.5 cm tall student fall?
Performing Statistical Calculations
t x
(
t t
), Q( ), and R( ), and normalized variate
Class no. Frequency
Height (cm)
1 158.5
2 160.5
3 163.3
4 167.5
5 170.2
6 173.3
7 175.5
8 178.6
9 180.4
10 186.7
6-4-5
t t t
)}/{Q( )}/{R( )} value
) value}
t x
( ) are calculated using the
t
Q ( )
1
1
2
2
3
4
2
2
2
1
19990401
MAT
•
t
R ( )