Histograms: # of Observations

The video tutorial explains the differences between bar graphs and histograms, focusing on how histograms display data in intervals without gaps between bars. It uses examples of tree heights and student study times to illustrate how to interpret data from histograms, calculate frequencies, and determine total observations.

Based on the histogram of tree heights, how many trees were observed in total?

What can you infer about the data represented in a histogram?