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In a sample of 75 randomly selected students at school, 32 are female. There are 1, 371 students in the school. Using these results, predict the number of females in the school.…

In a sample of 75 randomly selected students at school, 32 are female. There are 1, 371 students in the school. Using these results, predict the number of females in the school.…
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In a sample of 75 randomly selected students at school, 32 are female. There are 1, 371 students in the school. Using these results, predict the number of females in the school.

a: 275
b: 343
c: 585
d: 686

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User Anton Kuzmin
by
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1 Answer

3 votes
c: 585, You divide 1371 by 75, and multiply that by 32, then round up.  1371 is proportional to 75 and x is proportional to 32. 
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User Swaathi Kakarla
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Solve the proportion. Round the results three significant digits. 0.120/3× = 0.585/275 ×=
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