Answer:
Puntuación media = 42.83
La clase del puntaje promedio es 40-49
Explanation:
In Spanish/En español
El puntaje promedio para los datos agrupados se obtiene utilizando el método del punto medio. Es decir, el punto medio de cada clase se usa para representar el valor de la clase en el cálculo del promedio.
Clase | f | punto medio
10-19 | 1 | 14.5
20-29 | 8 | 24.5
30-39 | 10 | 34.5
40-49 | 9 | 44.5
50-59 | 8 | 54.5
60-69 | 4 | 64.5
70-79 | 2 | 74.5
El promedio es la suma de variables dividida por el número de variables.
Promedio = (Σfx)/(Σf)
Σf = 1+8+10+9+8+4+2 = 42
Σfx = (1×14.5) + (8×24.5) + (10×34.5) + (9×44.5) + (8×54.5) + (4×64.5) + (2×74.5) = 1799
Promedio = (1799/42) = 42.833
La clase del puntaje promedio es 40-49
¡¡¡Espero que esto ayude!!!
English Translation
In a test carried out on a group of 42 people, the scores shown in the table have been obtained. Calculate the average score and give the respective conclusion class f 10-19 20-29 30-39 40-49 50-59 60-69 70-79 n fi 1 8 10 9 8 4 2
Solution
The average score for grouped data is obtained using the midpoint method. That is, the midpoint of each class is used to represent the value of the class in the calculation of the average.
Class | f | midpoint
10-19 | 1 | 14.5
20-29 | 8 | 24.5
30-39 | 10 | 34.5
40-49 | 9 | 44.5
50-59 | 8 | 54.5
60-69 | 4 | 64.5
70-79 | 2 | 74.5
The average is the sum of variables divided by the number of variables
Average = (Σfx)/(Σf)
Σf = 1+8+10+9+8+4+2 = 42
Σfx = (1×14.5) + (8×24.5) + (10×34.5) + (9×44.5) + (8×54.5) + (4×64.5) + (2×74.5) = 1799
Average = (1799/42) = 42.833
The class of the average score is 40-49.
Hope this Helps!!!
Answer:
A) <u>Yo </u>no necesito un uniforme en mi escuela.
B) <u>Él </u>necesita estudiar en la clase de ciencias.
C) <u>Tú </u>no necesitas el cinturón.
D) <u>Usted</u>, Sr. Robinson, necesita cantar en la clase de música.
Explanation:
1 armonizar
2 governments should align and hold its government to its constitution
3 Jose Martin is speaking to the population in regard to the theme of unity in Latin American people and he’s doing in a enthusiastic voice
Hope it helps:)
Answer:
1. Se lo recomendó Rosalía.
2. Se los sirvió el dueño.
3. Se los trajo el camarero.
4. Se lo preguntó al camarero.
5. Se las pidió Tito.
6. Se lo pidió Celia.
7. Se la repitió el camarero.
8. Se las dió al dueño.
Explanation:
You must answer these questions:
1. Who recommended the restaurant to Celia?
2. Who served the appetizers to Celia and Tito?
3. Who brought the menus to Celia and Tito?
4. Who did Celia ask for the price of lobster?
5. Who asked the waiter for lobsters?
6. Who asked the waiter for a red wine?
7. Who repeated the dessert list to Celia?
8. Who did Tito thank when they left?
