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Of the 90 students surveyed at Genoe Middle School, 42 liked to watch basketball, and 24 liked to watch soccer. If there are 300 students there, how many liked to watch soccer?

 Apr 18, 2014

Best Answer 

 #3
avatar+118673 
+5

If the 90 students surveyed were a completely random sample then yes, you would expect the answer to be about 80.  If the sample was not completely random then there would be no way of estimating an answer. 

 Apr 19, 2014
 #1
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+5

$${\mathtt{42}}{\mathtt{\,\small\textbf+\,}}{\mathtt{24}} = {\mathtt{66}}$$

$${\mathtt{300}}{\mathtt{\,-\,}}{\mathtt{66}} = {\mathtt{234}}$$

From the information given, we can assume that the remaining 234 like to watch Soccer.

 

Unless we factor in the 3.3 increase in the amount of students, so from the first given amount

42+24=66 there's a remainder of 24, so 24 like soccer.  Factor in the 3.3 increase we get

139 Basketball

80 Baseball

And 80 Soccer

I rounded to the nearest tenth.

 Apr 18, 2014
 #2
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+5

24/90=x/300 cross multiply and divide getting 24*300=7200/90=80 

80 students

 Apr 19, 2014
 #3
avatar+118673 
+5
Best Answer

If the 90 students surveyed were a completely random sample then yes, you would expect the answer to be about 80.  If the sample was not completely random then there would be no way of estimating an answer. 

Melody Apr 19, 2014

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