Statistics: find vote percentage, given areas, samples, etc

[NoUseForAName]

An opinion poll in a district where half of the population lives in the city and the other half in the countryside gave the Socialist Party 10.6% of the votes in the city and 23.4% of the votes in the countryside. The sample consisted of 1600 persons. 430 didn't answer, of which 125 lived in the city.

Estimate the Socialist Party percentage in this district.

 

[tkhunny]

Re: Statistic

Build a little box.

Across the top, label Socialist and NonSocialist.

Down the side, label City and Country.

Fill in the given data and calculate the rest.