anonymous
  • anonymous
help please! :)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
@welshfella
anonymous
  • anonymous
There are 1,300 students in the school. Based on the sample proportion, how many students in the school would be expected to play indoor games for at least four hours every week? 546 598 702 1,248
welshfella
  • welshfella
i've no idea on this one

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Michele_Laino
  • Michele_Laino
we need to know the sample proportion
anonymous
  • anonymous
ok then
Michele_Laino
  • Michele_Laino
it is a missing data
anonymous
  • anonymous
ok
Michele_Laino
  • Michele_Laino
do you know what is the sample proportion?
anonymous
  • anonymous
no
Michele_Laino
  • Michele_Laino
please check the complete text of your exercise
anonymous
  • anonymous
is it 1,300
Michele_Laino
  • Michele_Laino
1,330 is the total number of the students
Michele_Laino
  • Michele_Laino
1,300*
anonymous
  • anonymous
umm.. 1300 x 7 ?
Michele_Laino
  • Michele_Laino
the sample proportion, is a positive number and less than 1
anonymous
  • anonymous
0
Michele_Laino
  • Michele_Laino
no, zero can not be, since your options are all different from zero
anonymous
  • anonymous
so 1?
Michele_Laino
  • Michele_Laino
the sample proportion has to be a data of your problem
anonymous
  • anonymous
oh sorry let me show you the whole problem :)
Michele_Laino
  • Michele_Laino
ok!
anonymous
  • anonymous
1 Attachment
Michele_Laino
  • Michele_Laino
the requested sample proportion is: \[\Large \frac{{42}}{{42 + 52 + 4 + 2}} = ...?\]
Michele_Laino
  • Michele_Laino
please continue
anonymous
  • anonymous
is it 59
Michele_Laino
  • Michele_Laino
\[\Large \frac{{42}}{{42 + 52 + 4 + 2}} = \frac{{42}}{{100}} = ...?\]
anonymous
  • anonymous
21/50
Michele_Laino
  • Michele_Laino
ok! so the requested number, is: \[\Large 1300 \cdot \frac{{21}}{{50}} = ...?\]
anonymous
  • anonymous
546!
Michele_Laino
  • Michele_Laino
yes!
anonymous
  • anonymous
Ivy has 4 tiles with pictures of plants and 5 tiles with pictures of animals. Ivy keeps all the tiles on a mat with the pictures hidden and mixes them up. She then turns one tile face up and finds the picture of a plant on it. She removes this tile from the mat and turns over another tile without looking. What is the probability that the second tile that Ivy turns over has a plant on it? 37.5% 44.4% 60.0% 80.0%

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