Asurvey conducted in a certain town found that 1 out of every 5 individuals owned a bike. a statistician calculated the margin of error to be 1.5%. what is the maximum percentage of individuals who own a bike?

1 out of every 5 means . This means percent.

Margin of error, according to the statistician, is 1.5%.

So 20% can be 1.5% less or 1.5% more.

We want the MAXIMUM PERCENTAGE, so we take percent. That is the maxium percentage of individuals who can own a bike.

ANSWER: 21.5%

answer: for each 3 girls there is 2 boys . 3: 2

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geometry: triangles

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call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584