a. None of the four approves.
b. Exactly two approve.
c. At least one approve.© BrainMass Inc. brainmass.com June 3, 2020, 10:32 pm ad1c9bdddf
Here given that 70% of the residents in the large town approve of the current zoning law. Four residents are to be randomly selected. Then probability of approving zoning law = ...
The random probability of residents being selected is analyzed.