In 1-3, a scale on the number line is given.  Determine the following:
a.)  Is the scale uniform?
b.)  If it is uniform, what is its interval?  If it is not uniform, where is it not uniform?
 

1.    ___________________________________
       3        6        9        12        13        16        19
 
 

2.    _______________________________
       2    2.5    3    3.5    4    4.5    5    5.5    6
 
 

3.    ______________________________
       4        8        12        15        19        23
 
 
 
 

In 4 and 5, detemine what would be a good interval to use for a scale on a bar graph.

4.    Distance from Savannah to                    Atlanta:              226 miles
        (as a crow flies)                                       Macon:              158 miles
                                                                    Jacksonville:      121 miles
                                                                    Orlando:            243 miles
                                                                    Myrtle Beach:    174 miles
 

    Good Interval = __________
 
 

5.    Percentage of students who did not enjoy my class in
                                                                                                1992:    1.2%
                                                                                                1993:    0.7%
                                                                                                1994:    2.1%
                                                                                                1995:    2.8%
                                                                                                1996:    1.4%

    Good Interval = __________