1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
torisob [31]
3 years ago
8

En un test realizado a un grupo de 42 personas se han obtenido las puntuaciones que muestra la tabla. Calcula la puntación media

y da la conclusión respectiva clase f 10-19 20-29 30-39 40-49 50-59 60-69 70-79 n fi 1 8 10 9 8 4 2 ?
Spanish
1 answer:
zepelin [54]3 years ago
8 0

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!!!

You might be interested in
¿Qué expresión personal se puede usar para dar consejos o sugerencias? Es probable que Es aconsejable que Es cierto que Es impor
IRISSAK [1]

Answer:

THAT

Explanation:

IS A GOOD QUOTATION...?

5 0
3 years ago
¿como se dice feber en español?​
steposvetlana [31]

Answer:

feber o fiebre? porque feber no es una palabra

Explanation:

6 0
2 years ago
Como hacer un parrafo descriptivo sobre la importancia del ejercicio​
Alex777 [14]

Answer:

How to make a descriptive paragraph about the importance of exercise.

Explanation:

You wanted the translation right.......

5 0
3 years ago
Complete with an appropriate word.
Naddika [18.5K]

Answer:

The answer is 6

Explanation:

Because it is in a complete sentence

8 0
3 years ago
____ mujer<br> la<br> el<br> las<br> los
Vesnalui [34]

Answer:

La <u>mujer</u>

Explanation:

I know spanish La is for women. you would say el hombre o la mujer.

3 0
3 years ago
Read 2 more answers
Other questions:
  • Which two words best describe the narrators opinion of Coyoacán?
    14·2 answers
  • Fui a comprar frutas ____ (instead of mi madre.
    11·1 answer
  • through a rectangular field alens 90 metre and breadth 62 Road farm tractor which are parallel to the side and cut each other at
    12·1 answer
  • Can you help me please!!
    10·2 answers
  • Are the days of the months capilized in Spanish
    12·2 answers
  • Answer in complete sentences
    12·1 answer
  • Acciones qué puede implementar el maestro de educción infantil para favorecer la crianza humanizada
    12·1 answer
  • One end of a wire is fixed 25m up a wireless mast .The other end is fixed to a boat which is concreted to the ground. The boat i
    15·1 answer
  • Please help me with this I need it done
    10·1 answer
  • Part B: Use the chart below to create 9 sentences using the present perfect tense to say what each person/group HAS DONE. 18 tot
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!