A bag contains colored tiles 3 tiles are red
6 tiles are green
3 tiles are blue
A tile is randomly selected from the bag what is the probability in decimal form that the tile selected will be green

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is