In which set of ordered pairs is y a function of x?
A. {(1.25, 6), (3, 6), (5.75, 6), (11,6)}
B. {(2, 15), (3, 12), (4, 10), (4,8)}
C. {(6, 1), (3, 8), (3, 9), (6, 12)}
D. {(6.5, 10), (6.5, 0), (6.5,9), (6.5, 12)}

4+2=-2. 1+2=3. y=-2/3x+b. 2=4/3+b. 2/3=b. the answer is y= -2/3x+2/3

The major difference is that a histogram is only used to plot the frequency of score occurrences in a continuous data set that has been divided into classes, called bins.  bar charts, on the other hand, can be used for a great deal of other types ofvariables  including  ordinal  andnominal  data sets.