anonymous
  • anonymous
A group of 250 middle school students were asked whether they prefer playing video games or watching TV in their spare time. The genders of the students and their responses are reported in the following table.
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
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Vocaloid
  • Vocaloid
percentage of girls = 100*number of girls/(number of boys + girls) percentage of students that enjoy watching TV = 100*number of students who prefer TV/(number of boys + girls)
anonymous
  • anonymous
@Vocaloid Im slightly confused, 100 *number of girls which is 130 divided by number of boys and girls?

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Vocaloid
  • Vocaloid
not quite, how many girls are there?
anonymous
  • anonymous
I added 43 and 87 because some girls watch tv and some play video games
Vocaloid
  • Vocaloid
actually, yea, you're right, there are 130 girls
anonymous
  • anonymous
so 130 girls divided by? the part where you had girls+ boys confused me
Vocaloid
  • Vocaloid
number of girls + number of boys = ?
anonymous
  • anonymous
250
Vocaloid
  • Vocaloid
right! so what is 100*number of girls/(number of boys + number of girls) ?
anonymous
  • anonymous
52
Vocaloid
  • Vocaloid
yup, 52%
anonymous
  • anonymous
I got 56% for the second part
Vocaloid
  • Vocaloid
yup, that's what I got, too, great work
anonymous
  • anonymous
Thank you :)

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