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Mathematics 15 Online
OpenStudy (anonymous):

The two-way table shows the number of girls and boys who are right-handed or left-handed. What percent of left-handed people are girls?

OpenStudy (anonymous):

OpenStudy (aripotta):

add up all the numbers first so we know how many people total are being represented

OpenStudy (aripotta):

8 + 9 + 2 + 2 = ?

OpenStudy (anonymous):

ok

OpenStudy (aripotta):

oh wait, sorry!

OpenStudy (aripotta):

it says "What percent of left-handed people are girls?" so only add up the left-handed people. so 2 + 2

TheSmartOne (thesmartone):

Now you are doing it correct :P

OpenStudy (anonymous):

4

OpenStudy (aripotta):

then, since there's only 2 girls that are left-handed, we'll do 2/4

TheSmartOne (thesmartone):

Exactly

OpenStudy (aripotta):

which simplifies to 1/2 or 50%

TheSmartOne (thesmartone):

And make it a percentage :)

OpenStudy (anonymous):

hxs:)

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