CPM Homework Help : CCG Problem 6-51

Donnell has a bar graph which shows the probability of a colored section coming up on a spinner, but part of the graph has been ripped off.

A bar graph showing the probability of spinning particular colors. Red and blue are both at the 3 eighth mark. Yellow is at the 1 eighth mark. The paper was ripped at the blue bar, so the color after cannot be seen.

What is the probability of spinning red?
Hint (a):
How is the $y\text{-axis}$ on the graph scaled?
Answer (a):
$\frac{3}{8}$
What is the probability of spinning yellow?
Hint (b):
This problem is similar to part (a).
What is the probability of spinning blue?
Hint (c):
Since you know the probabilities for red, yellow, and blue, and that all probabilities should add up to ____.
How can you find the probability for spinning green?
If there is only one color missing from the graph, namely green, what is the probability of spinning green? Why?