HP 10bII+ Quick Start Manual
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Getting Started 31
Enter .5 as a Z-value and calculate the cumulative probability of the Z-value and
the Z-value from a given cumulative probability.
For more information on probability, refer to the section titled, Probability in
chapter 12, Statistical Calculations in the HP 10bII+ Financial Calculator User’s
Guide.
]<
Calculates number of permutations of n items taken r at
a time.
]9
Calculates number of combinations of n items taken r at
a time.
]E
Calculates factorial of n (where -253 < n < 253).
Table 1-33 Calculating the probability
Keys Display Description
\5
0.00000 Sets number display
to five digits to the
right of the decimal.
7V]F
.69146 Calculates the
cumulative probability
of the Z-value.
17GV4
.94146 Adds .25.
]oF
1.56717 Ca l cu l a t e s t h e Z- va l u e
from the cumulative
probability.
Table 1-32 Probability keys
Keys Description