Question

if no additional information was given, which display type would not show the number of observations?
o bar graphs
o box plots
o dot plots
o histograms
classifying data displays

Explanation:

Bar graphs show frequencies (number of observations) through bar - lengths, dot plots show individual data points which can be counted to get number of observations, histograms show frequencies in intervals. Box plots only show the five - number summary (minimum, first quartile, median, third quartile, maximum) and do not directly show the number of observations.

Answer:

C. box plots