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GREYUIT [131]
3 years ago
10

A college has 480 students. Each student is numbered 1 through 480. A sample of 25 students is needed, so a computer randomly ge

nerates 25 numbers from 1 through 480. What kind of sampling method is being used?
convenience sampling

simple random sampling

systematic sampling

volunteer sampling
Mathematics
2 answers:
solmaris [256]3 years ago
4 0

The answer is simple random

Monica [59]3 years ago
3 0
Convenience. She just asked whoever she saw.

Simple random sampling. There was no sort of grouping or anything involved, and they tell you random numbers were used.

121 of 162 said yes, so the experimental probability is 121/162
4055 * 121/162 = 3028.73... = 3029 people.
• if u have any concerns contact me okay<3
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7 0
3 years ago
Los lados de un triángulo rectángulo miden 6m, 8m y 10m. respectivamente. ¿Cuánto medirán los catetos de un triángulo semejante
OlgaM077 [116]

Answer: Los catetos medirán 12m y 9m.

Step-by-step explanation:

Bueno, sabemos que los lados de nuestro triangulo son 6m, 8m y 10m.

Podemos usar relaciones trigonométricas para encontrar los ángulos de este triangulo.

Cos(X) = cateto adyacente/hipotenusa

Si tomamos al cateto adyacente como 8m, tenemos:

Cos(X) = 8m/10m

X = Acos(8/10)  

Esto nos dice que para que nuestro otro triangulo rectángulo sea equivalente al primero, entonces los nuevos catetos C1  y C2 tienen que ser tal que los cocientes entre los catetos y la hipotenusa se mantengan constantes:

C1/15m = 8m/10m

C1 = (8/10)*15m = 12m

C2/15m = 6m/10m  

C2 = (6/10)*15m = 9m.

5 0
4 years ago
Write the equation in<br> STANDARD FORM. (3<br> rules!)<br> -6x = 3y + 2/7
Dmitrij [34]

Answer:

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4 0
3 years ago
60 is 20% of what number?
ddd [48]

Answer:

300

Step-by-step explanation:

if 20% is 60 then try to find the 100% by multiplying

20% = 60

100% = x

100 × 60 = 20x

x = 300

6 0
4 years ago
Read 2 more answers
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