\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
In a city survey, the probability of a resident using public transportation is \( 0.7 \), and the probability of using a bicycle is \( 0.3 \). The probability of a resident using both public transportation and a bicycle is \( 0.15 \).
What is the probability that a randomly selected resident uses either public transportation or a bicycle?
\( P(\text{Public Transport or Bicycle}) = \)