the histogram shows the heights in means of trees in a certain section of a parkhome many trees are less than 20 meters all?491516

Answer:The number of trees which are less than 20 meters are:                                   9Step-by-step explanation:Based on the histogram we are asked to find the number of trees which are less than 20 meters in height.   Class interval             Frequency         4-8                             1         8-12                            2         12-16                           2         16-20                          4         20-24                          6         24-28                          4         28-32                          2i.e. we are asked to find the  total number of tress that lie in the class interval 4-20.i.e. we add the frequencies that lie in the interval 4-20i.e. Number of trees= 1+2+2+4=9 trees.