Answer
The selections are not independent. They can be treated as independent. The probability can be found by using the binomial probability formula.
Work Step by Step
The survey was done without replacement, therefore the selections are not independent, but are dependent. We know that there is a 5% guideline for calculations like this and here, 30 is 3% of 1000, 3%<5%, therefore they can be treated as independent. The probability can be indeed found by using the binomial probability formula.