
FX 115 MS Training guide
Probability Calculations/ Random Number/ Factorials
Permutations A permutation is a selection of objects in which the order of the
objects matters.
Example: To determine the possible number of different
arrangements using 4 items selected from 10 items.
[10] [SHIFT] [nPr] [4] [=] 5040
Combinations A combination is a selection of objects from a collection and order
is irrelevant.
Example: To determine the number of different combinations of 4
items selected from 10 items
[10] [nCr] [4] [=] 210
Random Number To generate a random number between 0 and 1,
press [SHIFT] [Ran#] [=]
Factorials To calculate a factorial, use [SHIFT] [x!]
9
References the Casio FX-115 MS User’s Guide Casio FX-115MS Scientific calculator
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