1000 likely voters in Pennsylvania are randomly chosen. 350 of them say that they plan to vote for Candidate A, 450 say that they plan to vote for his opponent, and 200 say that they are undecided.

In Pennsylvania,

__________ percent of all likely voters will vote for Candidate A.

__________ percent of all likely voters will vote for his opponent.

__________ percent of all likely voters are undecided.

Use the chart below in formulating your answers.

95% Probability Intervals for an Observed Relative Frequency of .50

Sample Size Probability Interval Size of the Interval

50 0.36-0.64 0.28, +/- .14

100 0.41-0.59 0.18, +/- .09

250 0.44-0.56 0.12, +/- .06

500 0.46-0.54 0.08, +/- .04

1000 0.46-0.53 0.06, +/- .03

2000 0.48-0.52 0.04, +/- .02

10,000 o.49-0.51 0.02, +/- .01