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ESTADISTICAS ESTADISTICAS I
ING OSCAR GUILLERMO SEGURA
UTH
CAMPUS DE LA CEIBA ALUMNA
: MEYDY MIRELY VASQUEZ
CUENTA
: 201120610074
CAT CATEDRÁTI EDRÁTICO CO
:
ING. ING. OSCAR OSCAR GUILL GUILLERM ERMO O SEGUR SEGURA A
ASIGNATURA
:
ESTADISTICA II
TAREA I LA CEIBA ATLÁNTIDA, 1 DE OCTUBRE DEL 2014
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T!"#! T!"#! $ 1: L! %&'("&)*+&- %# "/)!)&&%!% )&-/&! 1. La distribución binomial se utiliza cuando a. la variable es continua b. hay por lo menos 30 sujetos en la muestra c. la probabilidad no varía en cada intento d. las probabilidades de éxitos y fracasos son iuales
L! "/)!)&&%!% %# '##++&/-!" *- #'(*%&!-(# +/- +"(! +!"!+(#"'(&+! #' 0.3 '# '##++&/-! !#!(/"&!#-(# *- 5"*/ %# #'(*%&!-(#'. U(&&+# #'(! &-/"!+&- !"! "#'/-%#" !' "#5*-(!' 2 7. !. "#u$l es la probabilidad de %ue & de un rupo 10 estudiantes seleccionados tenan esa característica'
a.
[ ](
b.
[ ]
c.
[
10 ! 5 !
d.
[
10 ! 5 !
10 !
5!5!
10 ! 5!
) ( 0.7 ) 5
5
( 0.3 ) (0.7 )
5!
5!
0.3
5
] ]
( 0.3 ) ( 0.7 ) 5
( 0.3 ) ( 0.7 )
5
5
3. "#u$l es la probabilidad de %ue solamente 1 de un rupo 10 estudiantes seleccionados tena esa característica' a. (10)* +0.3, 1 +0.-,
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ESTADISTICAS ESTADISTICAS I
ING OSCAR GUILLERMO SEGURA
UTH
c.
[
d.
[ ]
10 ! 9 ! 10 !
10 ! 1!
](
0.3
) ( 0.7 ) 10
( 0.3 ) ( 0.7 ) 9
0
1
/. "#u$l es la probabilidad de %ue ninuno de los 10 estudiantes seleccionados tena esa característica'
a.
[ ](
b.
[ ]
c.
[ ](
d.
[ ]
10 !
0!0!
10 ! 9!
0.3
) ( 0.7 ) 0
10
( 0.3 ) ( 0.7 )
10 ! 10 !
10 ! 0!
9
0.3
) ( 0.7 ) 0
10
( 0.3 ) ( 0.7 ) 10
0
&. "#u$l es la probabilidad de %ue todos en un rupo de & estudiantes seleccionados tenan esa característica'
a.
[ ]
b.
[ ]
5!
5!5!
5! 5!
( 0.3) ( 0.7 ) 5
( 0.3 ) ( 0.7 ) 5
1
0
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[ ]( 5!
d.
5!
0.3
) ( 0.7 ) 5
0
. "#u$l es la probabilidad de %ue 3 de cada 3 estudiantes seleccionados tenan esa característica'
a.
[ ]
b.
[ ](
c.
[ ]
d.
[ ](
3!
3!3!
3! 3!
3!
3!
1
0.3
3 !3!
3!
( 0.3) ( 0.7 )
) ( 0.7 ) 3
0
( 0.3) ( 0.7 ) 3
)(
0.3 0.7
)
0
3
3
-. "#u$l es la probabilidad de %ue 1 de cada 3 estudiantes seleccionados tena esa característica'
a.
[ ]
b.
[ ]
c.
[ ](
3!
2 ! 2!
3! 2!
3! 2!
( 0.3 ) ( 0.7) 1
( 0.3 ) ( 0.7 ) 2
0.3
) ( 0.7 ) 1
1
2
0
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ESTADISTICAS ESTADISTICAS I
ING OSCAR GUILLERMO SEGURA
UTH
U(&&+# ! (!)! %# ! %&'("&)*+&- )&-/&! !"! "#'/-%#" !' "#5*-(!' 820. D/' %# +!%! +&-+/ *#'(/' %# 9#-(! %# +/&%! (-#- ;&(/ #- R/ L&-%/. S*/-5! <*# '# !)"#- +*!("/ -*#9/' *#'(/' %# +/&%!. U(&&+# #'(! &-/"!+&- !"! +/-(#'(!" !' "#5*-(!' 8 11. . "#u$l es la probabilidad de %ue los cuatro tenan éxito' a. 0.00 b. 0.0! c. 0.03 d. 0.1&/ . "#u$l es la probabilidad de %ue dos de los cuatro tenan éxito' a. 0.!& b. 0.3/ c. 0.3-& d. 0.&
10. "#u$l es la probabilidad de %ue ninuno tena éxito' a. 0.130 b. 0.1&/ c. 0.3/
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a. 0.0- b. 0.130 c. 0.1&/ d. 0.3-&
U(&&+# ! '&5*-(# &-/"!+&- !"! +/-(#'(!" !' "#5*-(!' 12 16.E- *-! +!'# %/-%# =! 10 =/)"#' 1 *>#"#', '# '##++&/-!- 8 #'(*%&!-(#' 1!. "#u$l es la probabilidad de %ue tres de los ocho sean mujeres' a. 0.0/1 b. 0.1!/ c. 0.!3! d. 0.!- 13. "#u$l es la probabilidad de %ue cinco de los ocho sean hombres' a. 0.0/1 b. 0.1!/ c. 0.!3! d. 0.!-
1/. "#u$l es la probabilidad de %ue todas sean mujeres' a. 0.001 b. 0.01-
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ESTADISTICAS ESTADISTICAS I
ING OSCAR GUILLERMO SEGURA
UTH
1&. "#u$l es la probabilidad de %ue todos sean hombres' a. 0.001 b. 0.01c. 0.!3! d. 0.!-
1. "#u$l es la probabilidad de %ue haya una sola mujer' a. 0.001 b. 0.00 c. 0.01d. 0.0/1
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b. 0.0&& c. 0.10 d. 0.!0! 1. "#u$l es la probabilidad %ue 1/ ó 1& estudiantes en el salón tenan acceso a una computadora' a. 0.00 b. 0.0&& c. 0.1-& d. 0.!/ 1. "#u$l es la probabilidad %ue todos los estudiantes en el salón tenan acceso a una computadora' a. 0 b. 0.01! c. 0. d. 1
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