HP 39gs Master Manual page 234

Equation
E6
(
This equation gives P a
( )
calculate P x a just find P x a
≥
Equations and
E7 E8
Finally, equations to
E7
( )
giving P a
E9 ≤ ≤
x b
mean will give a probability of 0.45?".
Finally, you may choose to split this aplet into two, placing equations 1 to 4 into an aplet called "
" and the others into another called "
PDFs
reinforces the correct technique of first of identifying whether the problem is discrete or continuous.
The Transformer aplet
This aplet is based on the Parametric aplet and allows students to
investigate geometric transformations using 2x2 matrices.
In the view,
APLET
new name of "Transformer". Enter the equations shown right.
Change to the
PLOT SETUP
and enter the settings shown.
Now change to the
Matrix Catalog
below into and .
M1 M2
⎡ ⎤
1 0
M 1 =
⎢ ⎥
0 −1
⎢ ⎥
⎣ ⎦
)
for an exponential distribution. To calculate P x a
≤ ≤
x b
( )
and then use the
≤
concern the Normal distribution, with
E0
and allowing calculation of questions such as "what distance either side of the
E0
Cont. PDFs
the Parametric aplet and
view
view and enter the matrices shown
⎡
1 2 1 1
M 2 =
⎢
⎢ 1 1 3 1
⎣
view to calculate the complement.
HOME
giving P X
E7
". I encourage my students to do this because it
it under the
⎤
⎥
⎥
⎦
234
( ) (
use P
≤ 0 ≤ ≤
x
( ) (
, giving P X
≥ E8
x
Discrete
)
. To
a
)
,
≤
x