Answer:
50%
Step-by-step explanation:
Based on this information it is stating that from all of the individual citizens living in the state of Florida 50% voted for Barack Obama. This means that the ratio would be 1/2 or half of the voters. Therefore, in a scenario where 10 individuals from Florida are randomly selected, about half of them would be expected to vote for Barack Obama meaning that the probability of this happening would also be approximately 50% (1/2)