elvieshezza elvieshezza

16-09-2019
Mathematics

contestada

There are 288 boys & 432 girls in a school. How many boys would be in a sample of 50 from the school?

Respuesta :

16-09-2019

Answer:

20

Step-by-step explanation:

First we calculate the percentage of boys

[tex]P_B = \frac{288}{288+432} = \frac{288}{720} = 0.4 => 40\% \ $of all students are male.\\$S(50b) = 0.4 \cdot 50 = 20[/tex]

Answer Link

Otras preguntas

Which early French trader had economic success in the Three Forks region, partly because of his previous trading experience in Illinois? A. A. P. Chouteau B. Jo

What is the volume of the box? 1 inch 1 1/2 inches 2 1/2 inches

−4(x + 1) − 3 = −3(x − 4)

What is a population? Group of answer choices A. a group of individuals of the same species living in the same area B. a group of different species living i

Given JL with J(-5,-1) and L(19,-9), if K lies on JL such that the ratio of JK to JL 7:8, find the coordinates of K.

How does Christianity differ from ancient Roman religion? Christianity has buildings for worship. Christianity offers salvation in the afterlife. Christianity i

can anyone please help with this

Consider that a 1/2 cup of serving of 1% cottage cheese is equivalent to 125 grams. If one once of cottage cheese is equivalent to 28.35 grams, how many ounces

7. The teachings of Confucius emphasizing love for humanity * (6 Points) monotheism Confucianism Christianity

How does the use of vectors allow you to compare, translate, and determine the motion of a object?