Determine whether the probability experiment represents a binomial experiment. If not, explain why.
(a) An urn contains 20 colored golf balls: 8 white, 6 red, 4 blue, and 2 yellow. A child is allowed to draw balls until he gets a yellow one. The number of draws required is recorded.
(b) According to the Uniform Crime Report, 2006, 16% of property crimes committed in the United States were cleared by arrest or exceptional means. Twenty-five property crimes from 2006 are randomly selected and the number that was cleared is recorded.