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
devlian [24]
3 years ago
12

Los 75 postulantes que fueron aceptados tuvieron notas desde 16 hasta a 20. Si el grupo se hubiera desempeñado de modo homogéneo

y hubieran tenido todos la misma nota, ¿cuál sería esa nota? 2. Si los estudiantes se agrupan según notas, ¿cuántos grupos se forman? 3. ¿Qué notas tendrían los estudiantes del grupo más grande? 4. Si los estudiantes se ordenan en fila según notas, ¿qué nota tiene el del medio?
Mathematics
1 answer:
joja [24]3 years ago
6 0

Answer:

Tenemos 75 postulantes, y sus notas están en el rango desde 16 hasta 20.

1) si el grupo es homogéneo y todos tienen la misma nota, entonces todos van a tener la nota media en el rango (16, 20)

Para encontrar esta nota calculamos la suma entre ambos extremos y lo dividimos por 2.

Media = (16 + 20)/2 = 36/2 = 18

La nota sería 18.

2) entre 16 y 20 tenemos:

16, 17, 18, 19 y 20

tenemos 5 notas distintas, entonces si agrupamos a los estudiantes por nota, tendríamos 5 grupos.

3) En una distribución normal, el grupo mas grande debería coincidir con la media del intervalo. Ya sabemos que la media es 18, entonces es esperable que la nota del grupo mas grande sea 18.

4) Si los estudiantes se ordenan en fila según notas tendríamos:

Fila con nota 16

fila con nota 17

fila con nota 18

fila con nota 19

fila con nota 20

Podemos ver que la fila del medio es el grupo con nota de 18

You might be interested in
The graph of the function f(x)=−4(x−3)2+9 will be a parabola opening in which direction?
sesenic [268]

Answer:

downwards

Step-by-step explanation:

the equation of a parabola in vertex form is

f(x) = a(x - h)² + k

where (h, k ) are the coordinates of the vertex and a is a multiplier

• if a > 0 then parabola opens upwards

• if a < 0 then parabola opens downwards

for

f(x) = - 4(x - 3)² + 9 with a = - 4 < 0 , then

the parabola opens downwards

8 0
2 years ago
In 1992, the average electric bill for a single
Aleksandr [31]

Answer:

Price went up, $24.64/year for 28 years

Step-by-step explanation:

Change Year = 28

Change Price = 690

Average rate = 690/28 = 24.64

6 0
3 years ago
Jose reads his book at an average rate of 2.5 pages every four minutes. If Jose continues to read at exactly the same rate what
madreJ [45]

it would take him 32 minutes. You could use divisoin and multiplecation to figure it out

7 0
2 years ago
Create an expression that is equivalent to 79.86-17.61
lesya [120]
62.25 + 1 - 1 cause that's just 62.25 + 0 which is 62.25
5 0
3 years ago
A highway on-ramp rises
Tamiku [17]
Slope = vertical length / horizontal lengthn = 15/100 = 0.15
6 0
3 years ago
Other questions:
  • BRAINLEST!!!Several students made comments about this image.
    13·2 answers
  • Which is NOT proportionate to 15/45 <br><br> 3/9<br><br> 3/15<br><br> 1/3<br><br> 30/90
    8·1 answer
  • Apply the distributive property to simplify the expression-4(5x +2)
    14·2 answers
  • What are the x- and y-intercepts of a line that passes through (5, 18) with a slope of 2?
    14·1 answer
  • Two functions are graphed on the coordinate plane.
    11·1 answer
  • Which expression is equivalent to -x² + 5x + 94 = 13?
    14·1 answer
  • Help.....................
    6·1 answer
  • What is -16-15????????????
    13·2 answers
  • Could someone help with my previously asked questions​
    8·2 answers
  •  Hansen has $65,575 in a savings account. The interest rate is 9% per year and is not
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!