Question

A forest ranger has data on the heights of a large growth of young pine trees. The mean height is 3.2 feet and the standard deviation 0.6 feet. A histogram shows that the distribution of heights is approximately normal. Approxi mately what fraction of the trees should we expect to be between 4.0 and 4.4 feet tall? A) 2% B) 7 % C ) 9\% D 91% E) 98%

Answer 1

The mean height is 3.2 feet and thestandard deviation 0.6 feet. A… ... A forest ranger has data on the heights of a large growth ... mately what fraction of the trees should we expect to be.