I don't understand this, could someone help me? The city of Raleigh has 10000 registered voters. There are two candidates for city council in an upcoming election: Brown and Feliz. The day before the election, a telephone poll of 350 randomly selected registered voters was conducted. 143 said they'd vote for Brown, 188 said they'd vote for Feliz, and 19 were undecided.

Give the sample statistic for the proportion of voters surveyed who said they'd vote for Brown. Note: The proportion should be a fraction or decimal, not a percent.
This sample statistic suggests that we might expect of the 10000 registered voters to vote for Brown.