The height of several trees was selected, their heights are 85.4, 87.6, 87.1, 85.6, 85.9, 85.3, 84.9, 83.7, 84.0, and 85.2. What is the average height of these trees
The average height of these trees is:
(85.4 + 87.6 + 87.1 + 85.6 + 85.9 + 85.3 + 84.9 + 83.7 + 84.0 + 85.2) / 10
= 865.7 / 10
= 86.57
Therefore, the average height of these trees is 86.57.