Unit 1 Contents

13. This is Nila, Jessie, and John's data.

1. They predicted that their bag would have 20 yellow, 10 blue, 10 red, and 10 green. Do you think their prediction was reasonable? Why or why not?
2. Would you have made the same or different prediction? What color would you have predicted to be the most common?
3. When Nila, Jessie, and John counted the tiles in their bag there were 20 red, 10 blue, 10 green, and 10 yellow. Do you think this is possible? What would you tell Nila, Jessie, and John?
4. Do you think it is possible that the same kind of thing could happen to Betty and her father when estimating the animal populations in the rain forest?

Here is the distribution of color tiles in Lin's “forest”:

1. What fraction of Lin's tiles are red?
2. What fraction are green?
3. What fraction are blue?
15. If Lin puts all her tiles back in the bag, mixes them up, and then picks one tile from her bag, what color or colors will she most likely pick?