Suppose you toss a coin four times and count the number of tails. Fill in the blanks in the following table to create a probability model for this situation. Give all probabilities as a fraction or a number between 0 and 1.Group of answer choices0 tails: 216, 1 tail: 416, 2 tails:416, 3 tails:416, 4 tails: 2160 tails: 116, 1 tail: 416, 2 tails: 616, 3 tails: 416, 4 tails:1160 tails: 016, 1 tail: 416, 2 tails: 616, 3 tails: 416, 4 tails:016
Question
Suppose you toss a coin four times and count the number of tails. Fill in the blanks in the following table to create a probability model for this situation. Give all probabilities as a fraction or a number between 0 and 1.Group of answer choices0 tails: 216, 1 tail: 416, 2 tails:416, 3 tails:416, 4 tails: 2160 tails: 116, 1 tail: 416, 2 tails: 616, 3 tails: 416, 4 tails:1160 tails: 016, 1 tail: 416, 2 tails: 616, 3 tails: 416, 4 tails:016
Solution
Para resolver este problema, primero debemos entender que estamos lanzando una moneda cuatro veces y contamos el número de caras. Cada lanzamiento de la moneda tiene dos posibles resultados: cara (C) o cruz (X).
El número total de posibles resultados al lanzar la moneda cuatro veces es .
Ahora, vamos a calcular la probabilidad de obtener 0, 1, 2, 3 y 4 caras.
-
0 caras (4 cruces):
- Solo hay una forma de obtener 0 caras: XXXX.
- Probabilidad: .
-
1 cara:
- Hay 4 formas de obtener 1 cara: CXXX, XCXX, XXCX, XXXC.
- Probabilidad: .
-
2 caras:
- Hay formas de obtener 2 caras: CCXX, CXCX, CXXC, XCCX, XCX, XXCC.
- Probabilidad: .
-
3 caras:
- Hay formas de obtener 3 caras: CCCX, CCXC, CXCC, XCCC.
- Probabilidad: .
-
4 caras:
- Solo hay una forma de obtener 4 caras: CCCC.
- Probabilidad: .
Entonces, la tabla de probabilidades es la siguiente:
- 0 caras:
- 1 cara:
- 2 caras:
- 3 caras:
- 4 caras:
Por lo tanto, la respuesta correcta es:
0 tails: , 1 tail: , 2 tails: , 3 tails: , 4 tails: .
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