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

Identify the complete subject and predicate Some of the dishes broke during the long move to the new house.

Three hundred thousand five thousand sixty three in standard form

1.explain why increasing the amounts of two enzymes changed the life spans of the mice 2. express your opinion about whether people should be engineered to hav

Which of the following statements would NOT be a main theme in the call of the wild? A. Always trust your gut B. Only the strong survive C. We are driven by our

15 points for who helps! Need answer fast!

A box contain 18 batteries 3 of which are defective. if you randomly select two of them what is the probability that neither are defective

You can use the curved part of a spoon as a mirror because it

1. Find the value of each expression. Show your work. (a) 1.2^2 (b) 2^3+17-34 (c) 9^2/3^3

Help me please thank you

Kamal bought 7 packs of paper clips for a project. Then he bought 8 more packs. There are 25 paper clips in each pack. How many paper clips did he buy?