The histogram above givens information on the measured heigh…

The histоgrаm аbоve givens infоrmаtion on the measured heights of black cherry trees.  Use the graph to answer the following questions.  1. What was the variable in the study?  [var] 2. Is the variable qualitative or quantitative? [qual] 3. What is the class width in this graph? [num] 4. What percentage of the trees were at least 70 feet tall?  [80]