Which of the following is quantitative data?
eye colors of a group of people

hair colors of a group of people

heights of a group of people

genders of a group of people

Heights of a group of people. Quantitative data is data with numbers and of all your choices, height is the only data with numbers.

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.