Multiple Choice Math Question?

To estimate the number of people in Springfield, population 10,000, who have a swimming pool in their backyard, 250 people were interviewed. Of those polled, 120 had a swimming pool. How many people in the city might one expect to have a swimming pool? (Round to the nearest whole number, if necessary.)





a. 480 people


b. 4800 people


c. 20,833 people


d. 3 people

Multiple Choice Math Question?
OK -proportion





Of 250, 120 had a pool





So





120/250 = x/10000


.48 =x/10000


4800=x


Answer is b





Hope this helps.
Reply:It is like:





If from 250 people 120 had swimming pool..





That's mean 10000 * 120/250 = 4800 people.





Good luck!
Reply:(120 /250) * 100 = 48% of the participants have a pool.





So





10,000 * 48% =





10000 * 48/100 =





4800 people have a pool





Answer B
Reply:20,833 people
Reply:120/250=0.48 (proportion of people who have pool in interwieved person)


0.48*10000=4800 (estimated number in city)


solution is b.

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