Quiz 1

7.  The accompanying histogram shows the life expectancies at birth for 190 countries as collected by an international health agency.

​a) Describe the shape.

​b) How many modes does the histogram​ have?

​a) Choose the correct answer below.

1. The distribution is uniform.
2. The distribution is symmetric.
3. The distribution is skewed left.
4. The distribution is skewed right.

​b) Choose the correct answer below.

1. There appears to be one​ mode, at 74 to 76 years.
2. There appears to be one​ mode, at 80 to 82 years.
3. There appears to be two​ modes, at 64 to 66 years and at 74 to 76 years.
4. The distribution does not have any modes.