Question

if 300 people are surveyed, what percentage of the people surveyed selected london as their favorite city?
favorite city | no. of people
sydney | 66
paris | 75
london |
berlin | 129

Explanation:

Step1: Calculate number of people who chose London

Total people surveyed is 300. People who chose Sydney: 66, Paris: 75, Berlin: 129. So number of people who chose London is \( 300 - 66 - 75 - 129 \).
\( 300 - 66 - 75 - 129 = 300 - (66 + 75 + 129) = 300 - 270 = 30 \)

Step2: Calculate percentage for London

Percentage formula is \( \frac{\text{Number of people who chose London}}{\text{Total number of people surveyed}} \times 100\% \). So \( \frac{30}{300} \times 100\% \).
\( \frac{30}{300} \times 100\% = 0.1 \times 100\% = 10\% \)

Answer:

10%