14
6
SHIFT
1
+
Ran#
•
=
=
=
Simulating Die Throws
=
The faces of a cubical die are numbered from one to six. The probability of getting any one of
these numbers is
6
1
. Here we would like to suggest a way of simulating series of throws,
using the Ran# function of
fx
-350MS, without using the actual die.
Procedure
1
. Set your calculator to
COMP
mode.
2
. Key in
1
6Ran#
+
, that is:
followed by
You will probably see something similar to the screen on
the right. (
Your displayed result may be different
.)
3
. Continue pressing
. Notice that for each press of
, the displayed output
will change.
4
. To simulate 5 throws (five times), first key in the formula
1
6Ran#
+
and press
.
Suppose you get the display on the right. By taking the
unit digit, i.e. 5, the first throw is 5.
Next, we press
Key Press
Display
Number generated
Second throw
6Ran#+1
3.832
3
Third throw
6Ran#+1
6.268
6
Fourth throw
6Ran#+1
2.278
2
Fifth throw
6Ran#+1
6.454
6
Hence, our simulation generates the throws of 5, 3, 6, 2, 6. Your simulation may generate
different outputs.
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=
=
=
6Ran#+1
5.296
6Ran#+1
5.11
Exploration and
Investigation
1