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16-09-2019
Mathematics

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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]

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