To find the relative frequency of undecided voters, we first need to determine the number of undecided voters.
- Total number of voters surveyed = 5,000
- Voters for Candidate A = 1,200
- Voters for Candidate B = 3,000
The total number of voters who expressed a preference (for either Candidate A or Candidate B) is: \[ 1,200 + 3,000 = 4,200 \]
Now, we can find the number of undecided voters: \[ \text{Undecided voters} = \text{Total voters} - \text{Voters for Candidate A and B} \] \[ \text{Undecided voters} = 5,000 - 4,200 = 800 \]
Next, we calculate the relative frequency of the undecided voters: \[ \text{Relative frequency of undecided voters} = \frac{\text{Undecided voters}}{\text{Total voters}} = \frac{800}{5,000} \]
Calculating the fraction: \[ \frac{800}{5,000} = 0.16 \]
Thus, the relative frequency of undecided voters is 0.16.