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Basic Statistics/Tables ( / ) . Basic Statistics/Tables ( /) Probability calculator ( ) ( 2.1).
2.1
. Probability Distribution Calculator ( ) ( 2.2).
Distribution (). , : , , χ- (-), , , . . , , Z(Normal) ( ). , : mean () st. dev ( ) ( 2.2).
2.2
:
= 0, = 1. , , .
: Density Function ( ), Distribution Function ( ).
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. . 0 1. Compute ()( ) X .
X . - , Compute ( ) . X.
: Inverse ( ), Two-tailed (),
1 - Cumulative (1 ), Send to Print ( ), Create graph ( ).
Create graph ( ) Compute (), ( - , : = 0 ( 2.3). , . , , .
2.3
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mean ( ), 1. 0,5 ( ).
Create graph ( ) Compute ( ), ( 2.4 ). , mean () 2,5. ( 2.4 ).
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, 176,6 7,63 .
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, 185 175 ?
1. . Z(Normal) ( ).
2. :
- mean 175,6;
- st.dev. 7,63.
3. 185. Compute
( ).
0,891022.
p1.
4. 175. Compute ( ).
0,468661.
2.
5. 2 p1. 0,422361.
, 0,422361
175 185 .
2 3
2 3 . . , (2 3 ), , , 95,45% 99,73% .
, : 95,45% 99,73% .
. , , , :
= 0, = 1, Two-tailed (), X 2 ( ), Compute, 0,9545 ( 2.6).
Density Function ( ) , 0,9545. , 95,45%. 95,45% .
2.6 2
, : = 0, = 1, Two-tailed X 3 ( ), Compute, 0,9973( 2.7).
2.7 3
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